Crittercam
![Crittercam footage of a narwhale swimming upside-down under the ice within a group of conspecifics.](/Images/godic/202501/07/-Upside-down-swimming-behaviour-of-free-ranging-narwhals-1472-6785-7-14-S2.ogv0748.jpg")
![Footage of an American alligator swallowing prey it just captured.](/Images/godic/202501/07/-Animal-Borne-Imaging-Reveals-Novel-Insights-into-the-Foraging-Behaviors-and-Diel-Activity-of-a-pone.0083953.s005.ogv0748.jpg")
Crittercam is a small package of instruments including a camera that can be attached to a wild animal to study its behaviour in the wild. National Geographic's Crittercam is a research tool designed to be worn by wild animals. It combines video and audio recording with collection of environmental data such as depth, temperature, and acceleration. The live feeds help scientists experience an animal's daily routines. Crittercam was invented by National Geographic marine biologist Greg Marshall in 1986. Since then it has been employed in studies on over 40 marine and terrestrial animals.