They are the first species that could live on dry ground.
a social group can be defined as two or more people who interact with one another, share similar characteristics, and collectively have a sense of unity. Other theorists disagree however, and are wary of definitions which stress the importance of interdependence or objective similarity. Instead, researchers within the social identity tradition generally define it as "a group is defined in terms of those who identify themselves as members of the group."[3] Regardless, social groups come in a myriad of sizes and varieties. For example, a society can be viewed as a large social group.
....!i hope it help u....
They help because if you can adapt to things a camouflage evolution will be eaiser.
54750/365 = 150
A tortoise can live 150 years.
