More gay animals! This time we talk about genetic mutations that cause same-sex attraction in fruit flies as well as two examples of gayness in birds that might be even cooler than gayness in penguins. 

Sources:

1996 study with fruitless mutations in male flies

2005 study with fruitless mutations in female flies

Courtship Behavior in Flies

Female-Female Pairing in Western Gulls in Southern California

News article with more context on the lesbian seagulls and conservative Christian responses

Actual photo of bird insides with testes and other organs labelled, as well as more information than you’ll ever need about bird reproduction

NYT article about gay albatross

2008 Laysan albatross paper, unfortunately not open-access

Photos of Laysan albatross and their gorgeous smoky eye

Music: Cabaret by Kai Engel