How many animals have no tails?

There are many types of animals without tails. Here are some typical animals without tails:

Humans: Humans are primates. Although there are still tail vertebrae in the human body, during the evolution process, the human tail has gradually degenerated and currently no longer has an obvious external tail.

Gorillas and chimpanzees: These two great apes are also primates and have also lost their tails during evolution.

Tailless lizards: Tailless lizards are a type of lizard suborder. They have the ability to automatically break away from their tails, so they are called "tailless lizards".

Tailless Sole: The Tailless Sole is a flat fish with a very short tail that is almost invisible.

Tailless snake: Most snakes have no obvious tail, and the tail gradually tapers to a point.

Tailless frogs: Some frog species evolve into tailless frogs as adults. They have tails when they are young, but their tails are completely absorbed and disappear as adults.

These animal species show that the degeneration or disappearance of tails is a relatively common phenomenon in the long history of evolution. It should be noted that not all animals that are called "tailless" have no tail at all. Some may have a tail that is so small that it is difficult to detect.

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