What's the difference between a tortoise and a tortoise?

There's an old saying in China that the millennium turtle gives people a strange illusion. Many people think that turtles have a particularly long life span, but this is not the case. It's just an exaggeration Now let's re-analyze this sentence: the tortoise can live for 1000 years, and the tortoise can live for 10,000 years, which means that the tortoise and the tortoise are not an animal! If so, what's the difference between a tortoise and a tortoise?

turtle

soft-shelled turtle

1. What is a tortoise?

There is a big difference whether the jerk mentioned here is a swearing "jerk". The "bastard" used to call names is actually a rumor of "forgetting eight tails", so I won't explain it too much here. The tortoise is actually our common tortoise. Why is it called tortoise? It is because the skeleton of tortoise shell is arranged like a combination of "Wang" and "Eight". The most common function of soft-shelled turtle is as food. Of course, some people treat it as a pet, but relatively speaking, more people eat it.

Second, the difference between tortoise and tortoise

1. The tortoise has a soft shell: its carapace is horny and hard, while its carapace is soft and has a "skirt", which is flatter than the tortoise as a whole.

2. The turtle's nose is very long: the turtle's nose is long on the mouth and does not protrude, but the turtle's nose protrudes. Here we want to talk about a special case: the pig-nosed turtle (details), also known as the pig-nosed turtle, a typical turtle nose, also known as the pig-nosed turtle, which is an alternative.

3. Turtles have no patterns: Many people distinguish turtles from tortoises by looking at their tortoise shells. The tortoise's carapace is flat and has no pattern, while the tortoise's carapace is prominent and has such pattern, which is very beautiful.

4. Tortoise is fierce: Many people have the experience of raising turtles and being bitten, but you don't know that turtles are actually more fierce than turtles. Sometimes when we tease the tortoise, the tortoise will shrink its head in its shell and attack only a few times (except for some fierce turtles), but the tortoise can't shrink its head in its shell, so it will be fierce and bite.

5. The biological classification is different: the tortoise belongs to the turtle class; Tortoise belongs to the genus Tortoise, which is actually two branches of tortoise.

In fact, turtles are basically aquatic, with limited species, while turtles are very classified, including water turtles and tortoises. Even so, many scientists still believe that the soft-shelled turtle is an advanced evolutionary version of the turtle.