- Animals - Land Mammals ## Earth's first bats didn't come from where we thought, landmark genetic study reveals In the largest study of its kind to date, researchers compiled data from 103 bat genomes and 44 fossils to rewrite the bat family tree and determine where these animals first evolved. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. - Copy link - Facebook - Reddit - Pinterest - Flipboard Scientists may have settled a decades-long debate about bat evolution, including controversial questions about when bats began to communicate…