What male animals give birth?

There are no known male animals that give birth in the traditional sense.

Here's why:

* Biological differences: Male animals typically have a Y chromosome, while females have two X chromosomes. This leads to different reproductive systems, with females having the necessary organs (ovaries, uterus) to carry and give birth to offspring.

* Evolutionary adaptations: Sexual reproduction has evolved in ways that typically involve a female carrying and nurturing offspring, making it more efficient for the survival of the species.

However, there are some cases where male animals contribute to the development of offspring in unique ways:

* Sea horses: The male seahorse carries the eggs in a pouch on his belly and provides oxygen and nutrients until they hatch.

* Seahorses and Pipefish: These fish species have males that carry the eggs in a pouch until they hatch. The female deposits the eggs into the male's pouch, and he fertilizes them.

* Some insects: In some insects, like certain species of crickets and beetles, the male contributes to the development of the eggs after fertilization, often by providing nutrients or protection.

These examples are fascinating, but they are not the same as giving birth. The biological process of giving birth, involving the development of the fetus within a female's body and the physical act of expulsion, is still exclusively a female function in the animal kingdom.