The highly intelligent parrot has a specific call, that—like human laughter—puts other parrots that hear it in a good mood. This makes the kea the first known non-mammal to show contagious emotion, joining the ranks of humans, rats, and chimpanzees.
Scientists already knew that kea—native to New Zealand's mountainous South Island—make a non-threatening warbling sound while playing with other kea. But since the birds also warble alone, the noise could simply be an expression of pleasure. Go here to see a video
NO LAUGHING MATTER
Kea play a lot—by themselves, with others, on the ground, or in the air.
While aloft, kea perform aerial acrobatics and chase each other. Playing with objects is usually solitary, with a bird manipulating an object with its beak and/or feet, but it can also involve birds tossing an object between each other. (Also see "Walruses Found Using Birds as Toys for First Time.")
When a religion is good, I conceive it will support itself; and when it does not support itself, and God does not take care to support it so that its professors are obliged to call for help of the civil power, 'tis a sign, I apprehend, of its being a bad one.
Do you tell me that the Bible is against our rights? Then I say that our claims do not rest upon a book written no one knows when, or by whom. Do you tell me what Paul or Peter says on the subject? Then again I reply that our claims do not rest on the opinions of any one, not even on those of Paul and Peter ... Books and opinions, no matter from whom they came, if they are in opposition to human to rights, are nothing but dead letters.
We owe a faith to the world and to ourselves. We owe a grace and gratitude to things that have brought us here. But I think it's a very important to say, 'Well, for everything, God has a plan.' That's like an excuse. Maybe the real faithful act is to commit to something, to take action, as opposed to saying, 'Well, everything is in the hand of God.'"