Editing Animal sexual behaviour (section)

===Bottlenose Dolphins===
[[Bottlenose Dolphin]] males have been observed working in pairs to follow and/or restrict the movement of a female for weeks at a time, waiting for her to become sexually receptive. The same pairs have also been observed engaging in intense sexual play with each other. 

Janet Mann, a professor of biology and psychology at Georgetown University, argues<ref>[http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2004/02/07/MNG3N4RAV41.DTL Central Park Zoo's gay penguins ignite debate]</ref> that the common same-sex behaviour among male dolphin calves is about bond formation and benefits the species evolutionarily.  They cite studies that have shown the dolphins later in life are bisexual and the male bonds forged from homosexuality work for protection as well as locating females to reproduce with.