Shark is a really dangerous sea animal.
Shark lives in the sea, and is considered to be really wild and… dangerous. Let’s find out more about it!
- Sharks are a group of elasmobranch fish.
- Sharks are characterized by a cartilaginous skeleton.
- Modern sharks are classified within the clade.
- The term “shark” has also been used for extinct members of the subclass Elasmobranchii.
- The earliest known sharks date back to more than 420 million years ago.
- There are almost 500 species of shark.
- Well-known species of sharks are the tiger shark, blue shark, great white shark, mako shark, thresher shark, and hammerhead shark.
- They are apex predator organisms.
- They are at the top of their underwater food chain.
- Shark embryos attack each other.
- Sharks have a sixth sense.
- Also, they an intensive sense of smell.
- Hammerhead sharks also have 360-degree vision.
- The longest fish in the world is a type of shark.
- Its the whale shark.
- It is 40 feet long.
- In general, sharks need deep water, so they live in the oceans.
- But some kinds of sharks inhabit freshwater lakes and rivers.
- Some sharks are pregnant for two years.
- The species of great whites have a more powerful bite than jungle cats.
- Great whites have a more powerful bite than jungle cats.
- The same stands for hippos, deer, and cows.
- Female sharks can reproduce without male sharks.
- Sharks prefer to attack men.’
- Sharks do not have bones.
- Sharks’ skeletons are made of pure cartilage and muscle.
- Sharks need to keep swimming in order to breathe.
- So they don’t sleep, but instead, they stay semi-conscious.
- Sharks are considered older than dinosaurs.
- Sharks grow up to 50,000 teeth in a lifetime.
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