Maybe even a couple of bumblebee bats and a bee hummingbird.

也许还有几只大黄蜂蝙蝠和一只蜂鸟。

Well, the bumblebee bat's body is only about 30 millimeters long.

凹脸蝠体长只有30毫米左右。

More incredibly, one of them is named the world's smallest mammal — the bumblebee bat.

更令人难以置信的是，其中一种被命名为世界上最小的哺乳动物——大黄蜂蝙蝠。

There are more than 5, 400 species of mammals alive on the earth today, and they range in size from the tiny bumblebee bat to the gigantic blue whale.

今天地球上现存有超过5400种哺乳动物，它们的体型跨度从细小的大黄蜂蝙蝠到巨大的蓝鲸。