http://news.bbc.co.uk/1/hi/sci/tech/7156146.stm
It's clear to me that this has come about because giraffes are a bit crap, seeing as they're a bit of a one trick pony, i.e. all they can do is reach up the top of tall trees to get leaves. So they've now decided to evolve them into 6 different types each of which will be able to do different things and have its own unique skillz.
And let's not try and pretend this isn't evolution - you needn't come the "they've always been like that, they've only just discovered it", 'cos animalologists are always doing research all the time into every type of animal, so the fact that this has only just appeared on the news this morning means that this is new stuff.
It's clear to me that this has come about because giraffes are a bit crap, seeing as they're a bit of a one trick pony, i.e. all they can do is reach up the top of tall trees to get leaves. So they've now decided to evolve them into 6 different types each of which will be able to do different things and have its own unique skillz.
And let's not try and pretend this isn't evolution - you needn't come the "they've always been like that, they've only just discovered it", 'cos animalologists are always doing research all the time into every type of animal, so the fact that this has only just appeared on the news this morning means that this is new stuff.