How do the Moms of the animal kingdom compare to those of the human world? Do some of the deadliest predators have maternal, as well as killer instincts? The Most Extreme Moms goes in search of the top ten mothers in the wild and pitches their nurturing abilities up against those of human mothers. With polar bears that sleep through labor, elephants that give birth to 200lb babies, orangutans that build about 30,000 homes in their lifetime and marine creatures that produce 50,000 young, these Extreme Moms put humans to shame! But which animal will steal the top spot? Could it be the elephant seal cow that puts on 600lbs during pregnancy? Or perhaps the mother alligator that carries its young between her snapping jaws? Some moms are really cool, but what makes a Mom extreme? We're counting down the top ten Moms on the planet — so standby for the mother of all programs, when motherhood is taken to The Most Extreme.