http://link.springer.com/article/10.1007%2Fs10071-007-0092-5?LI=true http://link.springer.com/article/10.1007%2Fs10071-007-0092-5... There's a definite possibi

http://link.springer.com/article/10.1007%2Fs10071-007-0092-5?LI=true http://link.springer.com/article/10.1007%2Fs10071-007-0092-5... There's a definite possibility bowerbirds learn bower making skills from older bowerbirds. There's also... http://en.wikipedia.org/wiki/Hundredth_monkey_effect http://en.wikipedia.org/wiki/Hundredth_monkey_effect