Dark Sun: The Scorched World of Athas
The parched travelers finally catch sight of a small, reedy oasis. One of their number, versed in nature magic, follows the course of a desert hawk. As the group descends the side of a small mesa, a sharp screech pierces the air. Their bird guide flaps its wings in panic as it is pulled into a patch of what looks like bamboo. It disappears with a crunch.
Veteran desert travelers know to be wary near an oasis. These locales can hide disguised predators such as chathrangs. A chathrang looks like an outsized tortoise, its back covered with reed like protrusions. These tubes shoot quills covered with a sticky toxin. Each quill is attached to the beast by a long, sinewy cord by which it pulls its quarry closer. Chathrangs prey on small flying birds or insects, but they capture land –dwelling prey if nothing else is available