There is work that shows that more than 200,000 square kilometers of cheetah-worthy grassland habitat, that existed about 100 years ago is no longer there.

有研究表明，超过200000平方公里的草原栖息地值得猎豹栖息，那些存在于大约100年前的东西已不复存在。

The researchers still don't know why the frogs prefer walking to hopping, but all four species live in similar grassland habitats that lack branches or foliage to latch on to.

研究人员仍然不知道为什么青蛙更喜欢走路而不是跳跃，但这四种青蛙都生活在类似的草地栖息地， 没有树枝或树叶可供依附。