It has not been observed in birds or lesser species.

Feminization can also be induced by environmental factors, and this phenomenon has been observed in several animal species.

Courtship display has also been observed in other species, but it does not hold for all mantises.

Because of interspecies differences, observing its effects in other species will not yield reliable data on how it might affect humans.

This "stilting" has been observed in several other species of fruit flies.

This organization has been observed in primates, rats, and other mammalian species.

Such neurons have been directly observed in primate and other species including birds.

This reaction has also been observed in other species.

So far this association has been observed in species that inhabit coral reef habitats.

It has been observed in numerous species, including mammals, birds, insects and fish.