While the charming and funny male leads with a sparkle in their eye have their appeal, there’s nothing like a dark brooding hero. It isn't enough for these sultry, elusive protagonists to pound ...

After collecting the tiny, two-gram Darwin’s frogs, the team discovered that 11 of the males were carrying tadpoles in their vocal sacs. They transported the brooding males and their tadpoles ...

Males of the South American species incubate their young in their vocal sacs. The London Zoo recently established a breeding ...