| [00:01.12] | First though valuable nesting places |
| [00:03.65] | must be defended from property thieves |
| [00:06.68] | After laying their eggs |
| [00:09.44] | take time out to clean their plumage the petrels |
| [00:13.22] | The south polar skua is a formidable opportunist |
| [00:19.73] | but the skuas have not chanced upon the petrels |
| [00:22.84] | they've been waiting for them |
| [00:25.76] | These birds do not need to go to the ocean for their food |
| [00:32.61] | The skuas can survive further south than any other predator |
| [00:36.84] | by exploiting the petrels' desperate need for bare rock |
| [00:42.22] | Even at the height of summer |
| [00:44.4] | less than 3% of Antarctica is free of ice |
| [00:47.96] | and nearly all of that exposed rock |
| [00:50.24] | is found in one place - the Antarctic Peninsula |
| [00:54.89] | Its long arm extends further north than the rest of the continent |
| [00:59.86] | so spring arrives here first |
YouTube Results (More on YouTube)