Head to head
Moose vs Reindeer
Both are northern deer, but they live almost opposite lives. The moose is the biggest deer in the world, a tall, dark, solitary animal of boreal forest and wetland that browses shrubs and wades for water plants. The reindeer, called caribou in North America, is a medium-sized deer of open tundra and taiga that moves in herds, sometimes vast migratory ones, and is the only deer in which both males and females grow antlers. It is also the only deer that people have widely domesticated.
| Moose | Reindeer | |
|---|---|---|
| Size | Largest deer; up to ~2 m at the shoulder, 400 to 700 kg | Medium deer; 60 to 180 kg |
| Social life | Solitary or in loose associations | Herd animal; some herds migrate in the tens of thousands |
| Antlers | Males only; broad and palmate | Both sexes; long, branching, forward-sweeping |
| Habitat | Boreal forest, wetlands, willow thickets | Tundra, taiga, and mountain plateaus |
| Winter food | Twigs, bark, and shrubs of the forest | Lichen dug from under the snow |
| Snow adaptations | Very long legs for wading through deep snow | Splaying hooves, dense hollow fur, warming nasal passages |
| Relationship with people | Hunted; a frequent and dangerous vehicle collision | Domesticated across northern Eurasia for meat, milk, transport |
| Conservation status | Least Concern | Vulnerable |
Moose vs Reindeer: common questions
Is a reindeer the same as a caribou?
Yes, they are the same species, Rangifer tarandus. In Europe and Asia the animal is called reindeer, and many populations there are herded or fully domesticated. In North America the wild animal is called caribou, and it has never been domesticated on that continent. Domesticated reindeer tend to be shorter-legged, stockier, and more variable in colour than wild caribou, the result of centuries of herding, but they interbreed freely and are not biologically distinct. Some scientists divide the species into several subspecies based on whether populations live in tundra or forest and whether they migrate.
Why do female reindeer have antlers when female moose do not?
Reindeer are the only deer in which females routinely grow antlers, and the leading explanation is competition for winter food. Reindeer feed through the snow in groups, digging feeding craters down to buried lichen, and a female with antlers can defend her crater from other reindeer, including antlered males, through late winter and into pregnancy. Males shed their antlers soon after the autumn rut, so through the hardest months the pregnant females are often the best-armed animals in the herd. Female moose do not compete over dispersed browse in the same way, and they carry no antlers.
Which is more dangerous to humans?
The moose, mostly through its size and its role in traffic. Moose are not aggressive by nature, but a cow defending a calf or a bull in the rut will charge, kick with the front hooves, and stomp, and every year people are injured this way in North America and Scandinavia. Far more significant is the road toll: a moose stands so tall that a car strikes its legs and the heavy body comes through the windscreen, making moose collisions among the deadliest animal-vehicle crashes. Reindeer are smaller, more wary, and rarely a physical threat, though herds on northern roads also cause accidents.