00:01
Alright, so we have a matching exercise that talks about some terms with evolution.
00:05
So for the first one, we're talking about the ability to echolocate, echolocation, in both bats and dolphins.
00:16
So this best matches with the term convergent evolution, because bats and dolphins are two completely distinct groups, groups, and they both needed the ability to echolocate to survive in their different surroundings, so they separately evolved the same ability.
00:39
It's not like dolphins evolved from bats or vice versa and inherited the trait that way.
00:44
It's a similar trait that developed in two different circumstances.
00:50
For number two, the similar bone structure that we're dealing with in the limbs of of dolphins and bats.
01:11
This comes from the fact that they have some similar lineage in the way that they both evolved from vertebrate ancestors.
01:22
So this is called an example of homology, a shared ancestral trait...