Gibbons Defend Against Predators With Song

[TheMadMonk]

http://www.livescience.com/animalworld/061223_gibbon_singing.html

I love it. Sneak up and essentially scream: "I SEEEEEE YOOOOOO!"

And yet another indicator that humour is not a purely human trait. As anyone who has encountered Black Cockatoos will immediately tell you.

[ixion]

1. I'm glad they've finally found proof...

that animals communicate with varying degrees of complexity is apparent just by listening to them, IMO. :-)

[Igel]

4. "Communication systems".

Vervets, bees, prairie dogs. And much, much more. Lots of stuff there.

Also look up "design features of language", something most linguists pay attention to.

[xchrom]

2. and to freepers: ''I SEE YOUUUUUUUUUUUU''

[Tandalayo_Scheisskopf]

3. Please...

Do tell more regarding Black Cockatoos(Which subspecies? Palm?) and a sense of humor. I am all ears. Or eyes. ;-)

[TheMadMonk]

5. Wouldn't know. Orange bums. Central Coast. NSW.

Every year they would come into our yard/trees to feed on the sheoak nuts. Things would be pretty silent, just clicking sounds as they cracked open the nuts. A nut would smack down somewhere nearby. Look up and there would be a black cocky which would immediately go into the bob, flap and screech routine parrots are famous for. But if you just notice one in the trees, it just gives you a look back that seems to say: "Wait until I throw something at you. Dumbass."

[Tandalayo_Scheisskopf]

6. Here they are:

http://www.forestholidays.com.au/pages/birds.html

Oz has such a wealth of wonderful birds.