Grey wolf with begging pup, Montana, USA
© Tim Fitzharris/Minden Picture
Welcome to the pack
This fuzzy pup is a young grey wolf, the largest member of the dog family (Canidae). Grey wolf pups are born between March and May. They are blind and deaf at first but after about three weeks they're ready to leave the den and begin exploring their surroundings. It takes them about six months to grow big enough to join the pack on hunts.
After decades of declining numbers due to habitat loss and hunting, grey wolf populations have stabilised in the US, at around 18,000. Most live in Alaska, but populations are also found in other northern US states. In Yellowstone National Park, a 1995 reintroduction program was so successful that they've been removed from the Endangered Species List there. This year marks the 25th anniversary of their reintroduction to the park, and these days they often can be seen and heard early in the morning in Yellowstone's Lamar Valley.
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