Why Do Male Seahorses Give Birth

Lets begin with a little lesson on the reason the R in FWARPS is so important to a species.
Why do male seahorses give birth. The animal kingdom is full of weird intricacies and anomalies that many people may not be aware of. As the embryos grow the males abdomen becomes distended just as in a human pregnancy. Why dont libraries smell like bookstores.
Though unusual for the animal kingdom we know that biologically male seahorses carry their young in pouch on their tail. When he is ready to give birth the abdomen opens and contractions expel the juvenile seahorses. Why does the male sea horse gives birth and not the female.
Its true that male seahorses never play catch with their children or help them with their homework. The male circles around the female and the pair often spiral around an object. When mating the female seahorse deposits up to 1500 eggs in the males pouch.
Scientists dont have a conclusive asnwer to why male seahorses give birth but they theorize that this is one of the tactics they use to help the species survive. They meet first thing in the morning to reinforce their pair bonding with an elaborate courtship display. You can watch a cool video of seahorse birth here.
No the males do not give birth although they do incubate and tend to the eggs laid by the female of the species and placed into a pouch or sac of the male. Seahorses pair for life. One that most would have heard of however is that male seahorses give birth.
The eggs are then fertilized in the males pouch when the sperm are released. And when they do they can produce up to 2000 babies at one time. Creating new life takes a lot of energy which factors into another theory as to why male seahorses carry the babies.