What is a horned screamer? Horned screamers are the unicorns of the bird world. Over the course of their lives, these birds grow long, white spines of cartilage in the middle of their foreheads.

The short-horned lizard is often referred to as a “horned toad” or “horny toad” because its squat, flattened shape and short, blunt snout give it a toad-ish look. There are over a dozen ...