Penguins are charmingly naive, but they have the reputation of "the boat of the ocean". It seems that penguins not only have lovely appearance, but also can't be underestimated. So how much do you know about penguins? Let's introduce the characteristics and characteristics of penguins. Let's enter the world of penguins!
Ten characteristics and life characteristics of penguins
1. The normal body temperature of penguins is about 100 & deg; f (38 & deg; c). Most penguins breed in spring and summer. The incubation time of eggs varies from one month to 67 days, depending on the species. Penguins are highly social birds. Even at sea, penguins usually swim and forage in groups. A large penguin can catch up to 30 fish in one dive.
2. Penguins have no teeth. Penguins are one of about 40 kinds of flightless birds, so penguins live in the southern hemisphere. There are 18 kinds of penguins in the world, from Antarctica to the warm waters near the equator of the Galapagos Islands. They can be found on every continent in the southern hemisphere, and there are no penguins in the Arctic.
3. Penguins are usually not afraid of humans. A wild Penguin usually lives between 15 and 20 years old, about 75% of which is spent in water. Penguins spend hours a day grooming or caring for their feathers. If their feathers are not well maintained, their feathers will not remain waterproof.
4. Penguins have more feathers than most other birds, averaging about 70 per square inch. Emperor penguins have the most feathers, about 100 feathers per square inch, which may be one of the main reasons why penguins are not afraid of cold.
Penguins have a special gland, so they can drink salt water
5. Penguins can drink salt water because they have a special gland that filters salt from their blood. Small penguins usually don't dive as deep as big penguins. Larger penguins, such as emperor penguins, can dive as far as 1870 feet for as long as 22 minutes, making them the deepest and longest divers.
6. Some prehistoric penguins are large and almost as tall as humans. The earliest known penguin fossils can be traced back to about 60 million years ago.
7. Penguins usually enter and leave the ocean in groups. The rarest penguin in the world is yellow eyed Penguin, with only 5000 living in the wild. They live on the southeast coast of New Zealand and nearby islands.
8. Penguin egg shells account for 10-16% of penguin egg weight. Most penguins live in South Africa, New Zealand, Chile, Antarctica, Argentina and Australia.
9. Larger penguins usually live in cooler areas, while smaller penguins usually appear in temperate and tropical climates. Most penguins can swim 5-6 miles per hour, some can reach 15 miles per hour, and they can walk between 1.7 and 2.4 miles per hour.
10. To prevent overheating, penguins cramp and cool down like dogs. Penguins can stay underwater for 10-15 minutes and then come to the surface to breathe. The largest number of penguins is macaroni, with about 11654000 pairs.