Dolphins and Porpoises are both mammals that differ in terms of body shape, shape of dorsal fin, teeth, behavior, traveling pattern, speech and lifespan.

Wolf is a carnivorous mammal belonging to the canine family. They are known for their howl. On the other hand, werewolf is a fictitious humanoid character who can transform into a wolf at night.

Fox, Jackal and Wolf, all three mammals belong to the Canadae family of mammals. Canids are further divided into the Canini (dog-like canids) and Vulpini (fox like canids). Most of the foxes belong to Vulpini...

Both women and woman are used to refer to females. A woman is a singular term used to describe an (one) adult lady, whereas women is a plural term used to describe more than one lady.