A shark pup was born in an all-female aquarium tank. How exactly could that happen?
Aquarium staff have also predicted that the baby shark was a result of delayed fertilization, where fertilization occurs long ...
来自MSN12 个月
A female stingray at a NC aquarium becomes pregnant without a male mate. But how?
One North Car o lina aquarium is looking to solve the mystery ... April Smith, executive director the North Carolina Science Trail in a blog post. "This means the offspring are, typically, all ...