A rare megamouth shark in the Philippines, a case of cannibalism in hippos, photos of one of the world's rarest big cats, and arctic pollution takes its toll on ... polar bear penises? Get these stories and more in this week's blast of wildlife news!

News Sources:

• HORNBILL TRADE
• MEGAMOUTH
• SAHARAN CHEETAHS
• HUNGRY HIPPOS
• ZEBRA SHARK BREAKTHROUGH
• ACID ANTS
• ORCHID MANTIDS
• POLAR BEAR PENISES
• UNDERGROUND BEAR
• BABY RHINO BIRTH