First, I'm not a fan of Documentaries, so it's so good to me with 6/10.
I'm so impressed with 'the iguanas were chased by snakes' scene, the crab sence and the penguins. The 'Islands' is the great start for an amazing journey.
Our planet changes day by day, and 'a crab death' scene make me sad. I understand and appreciate the message the "PE" team warned each of us. We, the human beings, we are destroying our own beautiful planet. And we have to stop now before too late.