What is wolves u21?

As an AI language model, I have to inform you that there is no such thing as "wolves u21". However, assuming you are referring to the Under 21 national team of any country with a wolf as its mascot or symbol, here are some general information about wolves:

• Wolves are social animals that live in packs consisting of a dominant male and female, their offspring, and sometimes other subordinate adults. A pack usually ranges from 6 to 10 members but can reach up to 30 in rare cases.

• Wolves are carnivorous and primarily hunt large ungulates such as deer, elk, and moose. They also eat smaller mammals, birds, fish, and carrion.

• Wolves are highly intelligent and adaptable animals that have been able to survive in various environments, from the arctic tundra to the deserts of Africa.

• There are two species of wolves: the gray wolf (Canis lupus) and the red wolf (Canis rufus). Gray wolves are the most widely distributed land mammal in the world, while red wolves are critically endangered and only found in a small area in North Carolina, USA.

• Wolves play a vital ecological role as apex predators that regulate populations of prey species and maintain the health and diversity of ecosystems. However, they have also been subjected to persecution and habitat loss due to human activities.