Why do giraffes have long necks?

it's because of evolution, but don't ask sarah palin, cause she doesn't believe in it :smilielol5:

 

trees ARE shorter. they used to be much larger. the ratio of gases which make up the earth's atmosphere also used to be much different. among other differences, oxygen levels used to be much higher - which is why dinosaurs could manage to live with such enormous bodies.

 

I know that if I lived on the Moon ,I'd be 12 feet tall.
Or dead..

 

How the fuck did giraffes cope in those days?

 

They have evolved to be able to suck their own dicks.

 

Awwwww
that is sooo cute I love him.

 

there weren't any yet

 

Me encantan las jirafas

 

^me too.....i think?

i dropped that hard class. i will take the lowest level next semester, a class for actual beginners

 

Be careful, according to some of the pictures in this thread it might want to be more than just friends...

 

yeah, and they're all game....you wait and wait and wait....but they never call you back




or so i've heard....

:leaving:

 

OK, so why didn't evolution wait a few thousand millennia until the trees had shrunk a couple more feet?

 

because evolution is not a controlled phenomenon. something changes, and if it works, the animal thrives. if it is a disadvantage, the animals with the new change die off more rapidly, and the existing versions of the animals thrive.

some changes aren't advantageous, but continue to recur because neither are they a disadvantage for survival

its really not that complicated.

most likely situation: over the course of a long, long, long time, giraffes began to exhibit longer and longer necks. as they could reach more ample and higher quality sources of food than other large herbivores in the area, this was an advantage, and it was encouraged. it didnt just happen overnight. and just because the mixtures of gases composing the atmosphere have drastically changed over the past few million years does not necessarily mean the trend will continue, or that trees will get smaller. you might as well ask why any herbivore would live anywhere with tall trees instead of way far north where there is winter for most of the year, less light, and the plants grow very small

 

haha, I said that I love giraffes

I think is best to take an easier class to start, things can get very confusing.

 

i thought so

or at least, i thought that it meant essentially that. am i correct that its essentially the same word as when you say "encantado" when you are very pleased to meet somebody?

i figured it would be the equivalent of the english word "enchanted" and a classy way to turn a greeting into a way to make a pass at someone pretty you just met, if you used the right inflection.....

of course, thats just a guess. i'm terrible with this stuff

 

It IS the equivalent to enchanted. Very good nesta!

 

haha...yay, i can recognize cognates!

 

I can surely hope!!

 

It's a skill that not everybody has

 

i'm relatively good with cognates in multiple languages, but learning vocabulary in a foreign language and ESPECIALLY grammar is unbearably difficult for me