Platypus venom is potent enough to kill a dog! The spurs are only on males and used mostly during mating season to fight rivals.

Platypuses are one of the few mammals with electroreception! It wasn't discovered until the late 20th century, solidifying the platypus' unique status.

Platypus bills are like underwater metal detectors, sensing electrical impulses from yummy invertebrates! Fish? Too speedy for these quirky critters.