| [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 |
