Frogs started living on Earth a long time ago when dinosaurs were still walking around! There are about 5,000 kinds of frogs in the world and each one has a different color. Frogs are amphibians and cold-blooded.
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People started domesticating chickens over 8,000 years ago. On average, a hen lays 300 eggs per year. A mother hen turns her egg about 50 times in a day.
The elephant is the only mammal in the world that can’t jump. The elephant is the national animal of Thailand. An elephant’s tooth can weigh up to 3 kilograms.
The giraffe is the tallest animal on Earth. The adult male giraffe can grow to be more than 5 meters tall. The giraffe is one of the most peaceful animals in the world.
There are 18 kinds of seals in the world. Today, several kinds of seals are endangered or don’t exist anymore. The largest seal is the Elephant Seal. It can weigh more than 2,265 kilograms.
Goldfish are cold-blooded. There are more than 500 kinds of goldfish in the world. The largest goldfish can be 30-40 centimeters long and about 3 kilograms in weight.
Cockroaches are found in all the countries of the world. There are over 5,000 different kinds of cockroaches in the world. Cockroaches do not have blood vessels.
Gorillas live in Africa. They live in forests in groups. Like humans, gorillas have 2 legs and 2 arms, 10 fingers and 10 toes. Gorillas have 32 teeth.
The camel does not store water in its hump. The hump on the camel’s back is a lump of fat. Baby camels are born without a hump.
- Ostriches started living on Earth about 120 million years ago. - The ostrich is the largest bird in the world. - Ostriches cannot fly.
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