 #2 (permalink) Wed Aug 17, 2011 16:21 pm Will you, please, explain to me? |
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The lecture is about how birds of paradise evolve through adaptive species radiation. The part about the trade in their tail feathers illustrates how sought after they are because of their adaptive differences.
The key sentence falls in the middle of this long piece:
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| There's about forty species of Birds of Paradise, and they're really outstanding examples of the evolutionary phenomenon of species radiation from a single ancestor, because each isolated mountain range in the New Guinea archipelago has its own unique, endemic species- species that're found nowhere else in the world. |
An even more suitable title might well be more to the point "Birds of Paradise" - however this is not an option. None of the options available fit as well as 'adaptive radiation'
The skin trade - no. The professor is talking about the trade in feathers.
The Birds of New Guinea - no, The professor is only talking about a single species, not a number of the species that can be found there.
Endangered species - no, The professor is only talking about one species, not a number of endangered species.
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Beeesneees
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