yes
YES!!
There is none except that male raccoons may be slightly larger than females. However, they are not consider to be sexually dimorphic.
There are no distinguishing marks or colours.
It really depends on what species of fish it is. However, there are few (if any) sexually dimorphic algae eaters. you can tell by how big it is.
The Sexually Dimorphic Nucleus (SDM). It is a cluster of cells located in the preoptic area of the Hypothalamus.
A lion The male is a lion and the female is lioness
Canaries are not sexually dimorphic. They look the same as the males.
Octopi reproduce sexually. They need a male and female to continue the species.
A male vixen is a fox, a female fox is a vixen, although a male fox can also be called a dog.
The male fox is a DOG fox and the female is a VIXEN.
Dimorphic Cynosure was created in 2007.