Zoo Rarity: Male Sea Dragon Pregnant

A weedy sea dragon at a Georgia aquarium is giving its handlers a rare Father's Day surprise, the Atlanta Journal-Constitution reports. The small critter—one of only a handful of species in which the male carries the eggs—is pregnant. It's just the third time a weedy sea dragon, whose native habitat in Australia is shrinking, has gotten pregnant at a US aquarium. The new arrivals are due in July.

"I can't even put what I feel into words because it is so rare," said a senior biologist at the aquarium. "We know there's something biologically or environmentally that triggers them to want to reproduce, but in the aquarium world, we're not sure what that is."