Sarah Kraak, who also works at Berne, set out to prove this point experimentally.
ECONOMIST: Birds do it, bees do it | The
2.
And, as Dr Kraak demonstrated, they are indeed being choosy.
ECONOMIST: Birds do it, bees do it | The
3.
Indeed, Dr Kraak's analysis of the male's courtship dance is that it is designed as much to let him stop a female from laying in his nest before he has assessed her as it is to show himself off.