00:01
So extinction happens.
00:04
Happens throughout the history of life.
00:06
Why are we so alarmed about the current wave of extinctions? so in general, there is an average rate of extinction.
00:14
So average rates of extinction.
00:16
And this is how many species we expect to go extinct in, say, a particular million years.
00:22
The problem with the current wave is that it has a far, far, far higher rate of extinction.
00:29
So current rate, the current rate is far too high.
00:34
So current rate of extinction is much higher.
00:40
So that is concerning, and it's also concerning because it is becoming worse over time.
00:46
We're getting a higher rate of extinction over time, and this is caused by human activity...