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A puppy is a juvenile dog. Some puppies may weigh 1–3 lb (0.45–1.4 kg), while larger ones can weigh up to 15–23 lb (6.8–10 kg). All healthy puppies grow quickly after birth. A puppy's coat color may change as the puppy grows older, as is commonly seen in breeds such as the Yorkshire Terrier. In vernacular English, puppy refers specifically to dogs while pup may often be used for other mammals such as seals, giraffes, guinea pigs, or even rats...

A swimming pool, swimming bath, wading pool, or simply a pool, is a container filled with water intended for swimming or water-based recreation. There are many standard sizes; the largest and deepest is the Olympic-size swimming pool. A pool can be built either above or in the ground, and from materials such as concrete, metal, plasticor fiberglass...

A crater lake is a lake that forms in a volcanic crater or caldera, such as a maar; less commonly and with lower association to the term a lake may form in an impact crater caused by a meteorite, or in an artificial explosion caused by humans. Sometimes lakes which form inside calderas are called caldera lakes, but often this distinction is not made...

Cameraman Gordon Buchanan endured an attack from a hungry female polar bear. The attack lasted 45 minutes. It was safe because the man was sitting inside a bomb-proof “perspex pod”, the on-ice equivalent of a shark cage. Gordon Buchanan is a Scottish wildlife film maker noted for his contributions to Big Cat Diary, Springwatch, Natural World and the 'Lost Land' series. Life Buchanan grew up on the Isle of Mull...