The Levi Lab at Oregon State

Jaguar behavior! This jaguar is scent marking a sloping tree. They use discrete points as territorial markers and to find mates. Look closely and you can see the marking in action.

A large male grooming after a swim. Maanav Kamath set these cameras at Taiama Ecological Preserve in the Brazilian state of Mato Grosso.

What does a jaguar call sounds like? Watch this video of a jaguar calling in the pantanal of Brazil to find out.

Mmmm….soapberry. Brown and black bears can consume a large quantity of fruit daily. They disperse the seeds into massive piles that are then fed on and secondarily dispersed by rodents.

Here is a video from Yasaman Shakeri’s research on the role that bears play in subsidizing small mammal populations. Check out how massive this weathered bear scat is compared to this red-backed vole! Voles and mice feed on the seeds in these giant bear scats for months. Like squirrels and acorns, these rodents hoard seed […]

Maanav Kamath’s MS project on the ecology of aquatic jaguars is yielding some amazing videos of jaguars. This may be the most beautiful video ever taken of wild jaguars.

We’re doing this fun study in Alaska to test the idea that seed-filled bears scats are highly important resources for voles and mice. We tagged loads of voles and mice and constructed these RFID readers to detect them if they visit bear scats. Only thing….a curious bear decided to play with our RFID reader just […]

Bears love salmon. Here they are near a sockeye spawning ground on the shores of Chilkoot Lake. Sockeye tend to spawn in lakes because they require good rearing habitat for their offspring. Other species of salmon, like pink and chum, can spawn in creeks and migrate straight out to the ocean. This year we are […]

During the summer of 2013 we monitored red fox dens in Dutchess County, New York. Foxes often place dens immediately adjacent to homes. We think this may be an adaptation to living with coyotes. Foxes are finding refuges near homes that coyotes are morely likely to avoid. Most of the time the adult foxes were […]

Time lapse video from a baited camera trap set in Dutchess County, New York. This site was apparently in close proximity to a coyote den, which is evident from the cute and tiny coyote puppies. Notably, no other carnivores, such as foxes, raccoons, skunks, or opossums (not technically carnivores), visited this site. However, deer did […]

June 4, 2014 Watching Steller Sea Lions feed on eulachon as part of an environmental eDNA study funded by the National Geographic Society. We are testing the efficacy of environmental DNA to provide an index of abundance for eulachon (Thaleichthys pacificus). Eulachon are a small anadromous smelt with extremely high fat content of any forage fish (20% […]