Do you know? When a baby shark is in its mother's belly, it eats unhatched fish eggs.
Protecting Wild Animals | Entering the Mysteries of Life Museum
Science Museum Public Welfare Class this issue 'Protecting Wild Animals' enters the Life Mysteries Museum, introducing aquatic wild animals—sharks. It was jointly completed by Professor Sui Hongjin of Dalian Life Mysteries Museum as the consultant and author Wang Xiaomin, etc. We visited the Liaoning Dalian Golden Beach, Jiangsu Zhouzhuang and Sichuan Chengdu Life Mysteries Museum, and used biological plasticization technology to create animal specimens to introduce life science knowledge and understand the knowledge of protecting wild animals.
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Protecting Wild Animals—Shark
Shark, in ancient times was called ',, ' , which is a huge beast in the ocean, so it is called 'sea wolf'. There are about 300 species of sharks worldwide. There are 30 species that actively attack humans, which are considered one of the most ferocious fish in the ocean by some people. The whale shark is the largest shark currently, and also the largest fish currently. The most ferocious Great White Shark in the ocean can tear apart almost any of its prey. Sharks need protection, shark fin soup is made from shark fins, once they are cut off the dorsal fins, sharks will because of losing their balance ability will sink to the bottom of the sea and die of starvation.
Protecting Wild
Live
Object—Shark
What is the magical part of shark's teeth?
Shark's teeth are very sharp and have a complex structure, composed of many rows of teeth. If the outermost teeth fall off, the following teeth will regenerate. They roll and turn continuously like gears. And the replacement frequency is very fast, about 6-8 days at a time. So a shark can replace tens of thousands of teeth in its lifetime.
What does a shark baby eat?
This exhibit is the only one in the museum that can display fish spawning and ovoviviparous specimens. We can see that in the fish mother's belly, the back half is already hatched small sharks, and the front half is unhatched shark eggs. Interestingly, the front part is the first meal prepared for the little sharks by the fish mother, gradually, the back little sharks will eat the front shark eggs. It seems that the competition in the shark family is very fierce.
Why are sharks one of the most ferocious fish in the ocean?
Sharks are one of the most ferocious fish in the ocean, known as 'ocean hunters'. There are about 300 species of sharks worldwide, of which 30 species actively attack humans, 7 of which may cause injury, and 27 species are dangerous due to their size and habits.
