Extreme sexual size dimorphism, with females larger than males, is quite common in spiders.

This prompts the question as to whether young females lay down less fat in species showing reversed size dimorphism.

A member of the Locustellidae family, the species is notable for sexual size dimorphism, among the most pronounced in any bird.

Like other map turtles, this species exhibits extreme sexual size dimorphism.

One example of sexual size dimorphism is the bat Myotis nigricans.

This was indicative of no geographic variation in sexual size dimorphism.

Species with intense male-male competition are known to exhibit the most size dimorphism.

He gave as examples sexual size dimorphism and mimicry.

Sexual size dimorphism in this species is perhaps the greatest in any carinate bird.