The Antarctic Weddell seal is also an excellent diver. It can dive to a depth of 600 meters for as long as an hour. What is the secret of such deep and long dives? Scientists conducted research in laboratory simulation sites and found that the physiological functions of Weddell seals change greatly during diving to adapt to the needs of diving. When a seal good at diving dives, the heart beat of the Weddell seal immediately drops from 55 to 15 times per minute, and the blood flow of the heart dr...
The Weddell seal, which inhabits the ice areas and ice edges of the Southern Ocean, is a master hole-puncher and a powerful assistant to oceanographers. Experts in burrowing - Weddell seals Weddell seals need to constantly surface to breathe, with intervals of 10 to 20 minutes and up to 70 minutes. When there is no ice, it is easy to rise to the surface to breathe. However, when the sea surface freezes, breathing becomes a big problem for Weddell seals. When a Weddell seal is trapped on sea ice ...
Elephant seals are distributed in the waters around Antarctic oceanic islands, breed on land, and like to live in groups. Whenever the breeding season comes in August and September, groups of elephant seals come ashore and start occupying territory and looking for mates. At this time, the bea...
If a person drinks seawater, he will become thirstier and thirstier, and eventually he will even die of thirst. However, fish, birds, reptiles, etc. that live in the ocean throughout their lives are not in this danger. Why is this? It turns out that they all have their own unique desalination...
In the history of our country for more than 5,000 years, there have been many animals, such as the ox, sheep, tiger and other cultural symbols in the Chinese zodiac, which have become an integral part of Chinese culture. In addition, many birds have also entered the poetry and paintings of ancient p...
Antarctica has plenty of sea ice and abundant food sources, but polar bears have nowhere to go. Arctic and Antarctic habitats have many similarities, but the creatures that inhabit them are very different. Both polar regions are home to seals and whales, but only the Nort...
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