The cougar goes by different names in different places: in California, people call them mountain lions; across western North America, cougars; in Florida, panthers; and in Mexico, Central and South America, pumas. All of these are names for one animal. About 40 English names have been listed for the cougar, and it is known by more names than almost any other mammal.

As of November 2026, the cougar's range runs from British Columbia in Canada through the US and Central and South America to the southern tip of Chile. The cougar has the largest range of any wild land mammal in the Western Hemisphere. The Cat Specialist Group says the puma can be found in every major habitat type in the Americas, except a few densely populated coastal regions and the highest reaches of the Andes.

The Cat Specialist Group says males weigh 40-60% more than females and can reach weights of up to 120 kg. It also says pumas living in southern Chile and Canada weigh twice as much as pumas occurring in the tropics. Adult male cougars have a head and body length of 1020 to 1540 mm, and females 860 to 1310 mm, in the Animal Diversity Web.

As of November 2026, Florida panthers occur in peninsular Florida, primarily south of Orlando. They are solitary, except for females with kittens, and tend to be most active between dusk and dawn. The Cat Specialist Group says the Florida panther is classified as Endangered in North America.

In the 1970s and 1980s, it was estimated that only 20 to 30 panthers remained in Florida. The Florida panther was put on the first Endangered species list in 1967, and its population rebounded from an estimated low of 10 animals to over 200, as of April 2022. Eight female Texas panthers were brought in in the 1990s and released in Florida to breed, which increased panther numbers, genetic diversity and survival rates.

The February 2017 Florida panther estimate was 120 to 230 adult and subadult panthers, up from 100 to 180 in 2014. The counts rely on annual counts of panthers primarily conducted on public lands, and do not include kittens, which are still dependent on their mothers.

Scientists put GPS collars on pumas in the Santa Cruz Mountains, and the GPS device recorded the lion's location every 20 minutes. The collars also hold an accelerometer that records fine-grained data on behavior and movement. They record not only location and travels but also hunting behavior such as bursts of speed or pounces. UC Santa Cruz researchers have captured 36 mountain lions since 2008, with fourteen still carrying active GPS collars as of July 2012.

The National Park Service study of mountain lions in the Santa Monica Mountains began when the first lion, P-001, was captured on July 19, 2002. The study fits a GPS radio-collar on subadult and adult mountain lions to monitor their movements, and studies about a dozen at a time. In the first 15 years, biologists captured and GPS-collared 29 adult and subadult mountain lions and used 128,133 locations to estimate home range size.

In the Santa Monica Mountains, adult male ranges averaged 144 square miles, about three times bigger than adult females at 52 square miles. Only about one percent of the lion locations were in urban areas.

Colorado researchers tested camera traps and other methods to sample cougars in the Front Range. California Fish and Wildlife uses genetic data from scat surveys (2017-2022) and GPS collar data in a statewide project to learn how many mountain lions there are. Colorado Parks and Wildlife has committed to measuring lion density in two study areas per year across the West Slope.

A cougar hunts mainly deer, but its diet depends on where it lives and what is there. A cougar typically makes a large catch every 7 to 10 days, and a female with kittens may hunt as often as every 3 days. A cougar stalks its food quietly before it leaps, and a cougar must get close to its prey before it ambushes from a short distance.

As of February 2015, in a Santa Cruz Mountains study, collared female pumas took an average of 67 deer per year, and males nearly 44. Female pumas in developed habitats took 36 percent more deer per year than in areas with little housing.

Cougar kittens are born with spots. A cougar's spots fade as it grows and are almost gone by age 1. A mother cougar gives birth to her kittens in a den. A typical cougar litter is two to four kittens. A newborn cougar kitten weighs about one pound, and its eyes are blue when it is born. Cougar kittens are cared for by their mother for up to two years.

Young cougars leave their mother and disperse. Male young cougars disperse from 23 to 274 km from where they were born, while females disperse from 9 to 140 km. Each goes off to find a territory of its own.

Words to know

• subadult: nearly grown
• accelerometer: movement recorder
• solitary: alone
• disperse: spread out