Animal Reproduction

These Butterflies Will Mate With Relatives

November 24, 2021 0

Far from being choosy about potential suitors, green-veined white butterfly (Pieris napi) females exhibit a complete lack of selectivity, even when it comes to mating with their relatives. This failure to discern siblings from non-siblings […]

Animal Reproduction

Female Grey Mouse Lemurs Are Extremely Promiscuous

November 17, 2021 0

Our smallest primate relative, the female grey mouse lemur (Microcebus murinus) is extremely promiscuous during their short breeding season (just a few days out of the year). These ladies are of a similar morphological size […]

Animal Parenting

Grandparents And Their Impact Based On Relatedness

November 10, 2021 0

We’ve talked extensively about the importance of grandmothers. Do grandfathers contribute to their collective fitness in a parallel way to their female counterparts? So far all the data suggest that they do not. This is […]

Animal Reproduction

Sperm Competition

November 3, 2021 0

Not all sperms are created equal. There is a great deal of variation in many aspects of sperm quality including morphology, mobility, and viability. As with all other aspects of biodiversity, there is tremendous selective […]