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Living Ocean

Here are some interesting facts about tiger sharks:

🦈 Tiger sharks can grow, use, and shed up to 24,000 teeth in their 10-year lifespan. These sharks reproduce through live birth, with litters of up to 80 newborns. They are prolific breeders and pose a significant threat to humans.

Tiger sharks are known for their distinctive striped pattern, which fades as they mature. They are apex predators and play a crucial role in maintaining the balance of marine ecosystems.

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Living Ocean

Hypselodoris confetti 🐌

This is a species of brightly colored sea slug from the family Chromodorididae in the order of nudibranchs. They inhabit the Pacific region.

🌊 Did you know that Hypselodoris confetti is a type of nudibranch, which means "naked gills" in Latin? These fascinating creatures are known for their vibrant colors and intricate patterns on their bodies. They use their bright appearance to warn predators of their toxicity. Nudibranchs are hermaphrodites, meaning they have both male and female reproductive organs. 🐚

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Living Ocean

Is a lettuce leaf escaping from the salad? 😁
No, it's just the gastropod mollusk elysia grazing in the algal meadows. Elysia is a mollusk capable of photosynthesis, like plants. To do this, he uses chloroplasts from his favorite kelp.

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Living Ocean

Pugettia producta 🦀

Known as the northern kelp crab or shield-backed kelp crab, this species belongs to the family Epialtidae. These crabs are commonly found in kelp forests along the Pacific coast of North America. They are an important part of the ecosystem, helping to control sea urchin populations. 🌿🦀

Pugettia producta is a colorful crab species that comes in various shades of red, purple, and brown. They have a distinctive shield-like carapace and long, slender legs adapted for climbing on kelp fronds. 🌊🌿

Interestingly, these crabs are known to engage in a unique behavior called "kelp surfing." They climb to the top of kelp fronds and ride the waves, allowing them to disperse to new kelp beds and find food. 🏄‍♂️🌊

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Living Ocean

Crocodiles 🐊

They swallow small stones to improve digestion

Swallowing stones, known as "gastroliths", is beneficial for crocodiles that eat their prey whole, or for animals with shells and bones. Gastroliths help grind up food in the stomach. These stones can remain in a crocodile's stomach for years.

Fun fact: Some ancient fossils of crocodiles have been found with gastroliths still inside their stomachs! This shows that the practice of swallowing stones for digestion goes back millions of years in the crocodile family tree. 🌿🦴

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Living Ocean

Dumbo Octopus 🐙

At the pelagic larval stage, drifting in the inky darkness of the open ocean at a depth of several thousand feet. This is the same creature as in the engraving from my "Aliens" collection, "Alien #12".

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Living Ocean

Spirocodon 🪼

Spirocodon is a monotypic genus of hydrozoans, with Spirocodon saltatrix being the only species in the genus. It inhabits the northwest Pacific Ocean and was first described in 1818 by German naturalist and explorer Wilhelm Gottlieb Tilesius von Tilenau. 🌊

Did you know that Spirocodon saltatrix is a unique species of hydrozoan? It's the sole representative of its genus, making it a fascinating subject for marine biologists studying the diversity of life in the Pacific Ocean. 🌊🔍

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Living Ocean

🐟 South American Arowana

Large, graceful fish with attractive coloration. They look stunning in spacious, elongated show aquariums. Arowanas are active predators that enthusiastically attack smaller tank mates. These ancient fish are sometimes called "living fossils" as they have remained relatively unchanged for millions of years. With their unique appearance and captivating movements, South American Arowanas make a striking addition to any aquarium.

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Living Ocean

Two-headed turtle 🐢

There are several types of conjoined twins, also known as Siamese twins. In this case, it is called polycephaly. Polycephaly is a condition in which an animal has more than one head.

🐢 Polycephalic animals are rare but have been documented in various species, including turtles, snakes, and cats. The two heads may share a single body or have separate bodies fused together.

🐢 The exact cause of polycephaly is not fully understood, but it is believed to result from genetic mutations or developmental abnormalities during the embryonic stage. Each head typically has its own brain and can control its respective body parts independently.

🐢 Despite the challenges posed by having two heads, some polycephalic animals can survive and even thrive in captivity. They often attract significant attention due to their unique appearance and the curiosity surrounding their condition.

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Living Ocean

Cabangus regius 🐯

This small sea slug inhabits the tropical waters of the Indo-Pacific region. Dark brown growths are located on its back. 🌊🐚

Also known as the Royal Cabangus, this colorful nudibranch is a master of camouflage, blending in with its surroundings. Its intricate patterns and vibrant colors make it a fascinating subject for underwater photographers. 📸🌈

Interestingly, the Royal Cabangus feeds on marine algae and sponges, using its specialized radula to scrape off the surface of these organisms. This feeding adaptation allows it to thrive in its coral reef habitat. 🐚🍃

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Living Ocean

Deep-sea lobster Eryoneicus 🥰

It swims and feeds in the water column until it is ready to transform into a young lobster and settle on the ocean floor.

Lobster larvae are covered with thousands of tiny hairs, which they lose over time as they transform into adult specimens. The larva is about five centimeters long.

Did you know? Lobsters are known for their long lifespan - some species can live up to 50 years! They also have the ability to regenerate lost limbs.

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Living Ocean

Mesmerizing 🦀

These crabs are called "fiddler crabs" due to their extremely large claw, which often exceeds the size of the crab itself. However, only male crabs possess this oversized claw. During the mating season, males use this claw to attract females, trying to catch their attention with dynamic movements. The male whose movements are the most impressive to the female can expect a "date".

Fiddler crabs are known for their unique mating ritual, where males wave their large claws to attract females. This behavior is believed to have evolved to help them stand out in their natural habitat, which is often crowded with other crabs.

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Living Ocean

Blennidae Family 🐠

This family of fish inhabits seas and oceans around the world. Blennid larvae have an elongated body and distinctive fins that help them move through the water. 🌊

Did you know? Some blennies can change their coloration to blend in with their surroundings, making them masters of camouflage! 🎨

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Living Ocean

Giant Blue Marlin 🔥

The giant blue marlin is a large fish found in tropical and subtropical waters around the world. It can grow up to 16 feet long and weigh up to 1,800 pounds. Marlin are top predators, feeding on fish, squid, and other marine life.

Did you know? The blue marlin is known for its incredible speed, reaching up to 50 mph in short bursts. It's also a popular game fish, prized by anglers for its strength and beauty. 🎣💪

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Living Ocean

Corydoras napoenzis 🥰

Corydoras napoenzis, also known as the Napo Cory, is a peaceful bottom-dwelling catfish. They feel most comfortable in groups of 4-6 individuals, constantly sifting through the substrate in search of leftover food particles. These industrious little fish act as the aquarium's "janitors," helping to keep the tank clean. Completely harmless to plants and other tank mates, they make wonderful additions to any peaceful community aquarium. 🐠🌿

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Living Ocean

🦀 Boxer Crab or Pom-Pom Crab

These tiny creatures have a soft shell that is no wider than 13 millimeters. Despite their small size and lack of hard "armor," they are incredibly feisty. What's even more fascinating is that to defend themselves against predators and rivals, they use "weapons" - poisonous anemones.

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Living Ocean

Coryphaena hippurus. The common names are mahi-mahi, dolphinfish, or dorado.
They are pelagic, meaning they live in the open sea, and maybe note their preference for warm surface waters. Also, they are often found near floating debris or seaweed, which is a key ecological point.

Physical characteristics: They have a compressed body, vibrant colors—blue, green, gold. Males have a prominent forehead, while females are more rounded.

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Living Ocean

Jellyfish: Bizarre Creatures of the Deep 🪼

Jellyfish are some of the most unusual animals found in every ocean and sea. Some are beautiful, while others look frightening. Among them are harmless creatures and deadly dangerous species. Jellyfish are among the oldest living beings on Earth. Scientists believe that the first jellyfish appeared on our planet long before the dinosaurs, about 650 million years ago. They have survived multiple mass extinctions and continue to thrive in the world's oceans today. With their gelatinous bodies and stinging tentacles, these ancient creatures never cease to fascinate and mystify us.

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Living Ocean

🐠 Rhinogobius vermiculatus

The body is elongated with a large, slightly flattened head. Females are smaller and paler than males. Coloration: the body is gray-blue with reddish-brown markings. Cheeks are pink with white spots. Lower jaw is blue. Grows up to 3.5 cm SL.

Did you know? Rhinogobius vermiculatus is a small freshwater fish native to East Asia. It inhabits rivers and streams with sandy or gravelly bottoms. This colorful goby is popular in the aquarium trade due to its vibrant colors and peaceful nature. 🎨🌊

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Living Ocean

Catalaphyllia jardinei ✨

Known as the "elegant coral" or "maned coral," this large stony coral is found in the western Pacific Ocean. It is the sole representative of the monotypic genus Catalaphyllia. First described by William Saville-Kent in 1893 as Pectinia jardinei, this coral is a striking sight on the reef.

Catalaphyllia jardinei is known for its distinctive appearance, with long, flowing tentacles that resemble a mane, giving it its common name. The coral's polyps are large and fleshy, and can come in a variety of colors, including brown, green, and yellow. This coral is a hermaphrodite, meaning it contains both male and female reproductive organs.

Interestingly, C. jardinei is a relatively slow-growing coral, with a growth rate of about 0.3 to 1 cm per year. Despite its slow growth, it plays an important role in the reef ecosystem, providing shelter and habitat for a variety of marine organisms.

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Living Ocean

The Mimic Octopus 🐙

The Mimic Octopus (Thaumoctopus mimicus) is an incredible cephalopod known for its ability to impersonate up to 15 different marine species, including the lionfish, sea snake, jellyfish, sea anemone, sole, giant crab, zebra fish, and more. This mollusk is capable of selecting the most advantageous camouflage depending on the specific predator that happens to be nearby, making it a true master of disguise in the ocean.

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Living Ocean

Blenniidae Fish Larvae 🐠

Total length around 2 cm. The black chromatophores on the head and propeller-shaped open pectoral fins are very eye-catching. 🌟

Did you know that blennies are a diverse group of small marine fish, with over 800 species described? They are known for their unique adaptations, such as the ability to climb rocks and coral using their pectoral fins. 🤓

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Living Ocean

Ghost Fish 👻

Camouflage is the key to survival for many marine creatures. When necessary, it can blend in with the bottom or transform into a seaweed branch.

Tubeworms mainly live at depths of 2 to 12 meters, close to seaweed and corals. This helps them instantly blend in with their surroundings by changing color in dangerous situations.

Fun fact: Some species of ghost fish can even change their shape to mimic other animals or plants for added protection! 🐠🌿

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Living Ocean

Whale Shark: The Gentle Giant of the Sea 🌊

If you're afraid of marine predators, you can breathe easy around the whale shark. These graceful creatures feed by filtering water through their gill arches, allowing them to capture their main food source: plankton and small fish.

Fun fact: When feeding, a whale shark's mouth can stretch open more than a meter wide! 🐳

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Living Ocean

Grimalditeuthis 🦑

This deep-sea squid is named after the Grimaldi family, the ruling house of Monaco. Prince Albert I of Monaco was an amateur teuthologist who first began studying deep-sea squids by collecting "precious belches" from sperm whales. 🌊

Fun fact: Grimalditeuthis can grow up to 4 meters long and has bioluminescent organs to attract prey in the dark depths of the ocean! 🌟

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Living Ocean

Spirobranchus giganteus 🎄

This species of polychaete worm belongs to the family Serpulidae. They are widely distributed in the tropical seas of the world's oceans. Spirobranchus giganteus leads a sessile lifestyle in close association with stony corals, building calcareous tubes in depressions on the surface of coral colonies. Representatives of this species are often kept in aquariums along with coral polyps.

🐚 Interesting fact: The Christmas Tree Worm (Spirobranchus giganteus) gets its name from its resemblance to a tiny fir tree. Its colorful, spiraled radioles protrude from its tube-like home, resembling the branches of a pine tree. These radioles are used for filter feeding and gas exchange. When threatened, the worm quickly retracts its radioles into its protective tube.

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Living Ocean

Garden eels - Heterocongrinae 🔥

These unique eels live in colonies on sandy bottoms, with a single colony covering up to 4 square kilometers. The longest species can reach 120 cm, but most are around 60 cm. They feed on zooplankton and small fish. Garden eels never leave their burrows, only extending out to mate with a partner. 🐠

Fun fact: When disturbed, garden eels quickly retreat into their burrows, which they create by secreting mucus to cement sand grains together. 🏰

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Living Ocean

Dolphins swimming nearby deter sharks from attacking humans 🐬

Once, researchers conducted an experiment. They created a fake dolphin and lowered it into the water with bait in a area known for sharks. No shark dared to attack the prey. When the fake dolphin was removed, the bait was instantly attacked. There are many known cases of dolphins saving humans from sharks.

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Living Ocean

Bicolor Blenny 🐟

Hides in coral reefs. It feeds on small crustaceans and mollusks. Blennies play an important role in the ecosystem of coral reefs.

These colorful little fish are found in the shallow waters of the Indo-Pacific region. They have a unique appearance with their elongated bodies and large eyes. Bicolor blennies are known for their vibrant colors, which can vary from yellow to blue and even black.

Interestingly, blennies have special glands in their skin that produce a slimy mucus. This mucus helps protect them from predators and parasites. It's also believed to have antimicrobial properties, which aids in wound healing.

Blennies are not just beautiful to look at, but they also serve a vital purpose in their ecosystem. By feeding on small invertebrates, they help control the population of these creatures, maintaining a balance in the coral reef community. 🐠🌊

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Living Ocean

Epinephelus tukula 🐟

This is a large marine fish that inhabits tropical and subtropical waters. They have a massive body and are predators, feeding on small fish and other marine animals. Giant groupers can reach impressive sizes and weights, and their keen eyesight and stealth make them effective hunters. 🎣

Did you know? The giant grouper is the largest bony fish in the world, with some individuals reaching over 8 feet in length and weighing up to 800 pounds! 😮

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