(PhysOrg.com) -- The male Mallard duck (Anas platyrhynchos) is known for its colorful neck and a bill that ranges in color from dull green to bright yellow, depending on the amount of carotenoid ...

Wildlife Illustrated artist Jim Heck always challenges me with his wonderful feature. It’s like he throws the gauntlet down to me. Match that! Well, I try. In fact, unlike most Wildlife Illustrated ...

When you think “duck,” the duck that probably comes to mind (besides Donald Duck) is the mallard (Anas platyrhynchos). Mallards are the quintessential duck. They quack like a duck should. They have a ...