Kangaroo's 5th leg

New research suggests that kangaroos use their tails as a 5th "leg":

More like this

Many groups of animals, from humans to dinosaurs to kangaroos, have evolved the ability to stand and walk on two legs. In all of these cases, the move from four legs to two has provided clear advantages. Kangaroos save energy because their hopping is so efficient, birds have freed their front pair…
Geckos are nature's champion climbers. With remarkable ease, they can scamper across ceilings and up smooth vertical surfaces, and they do so at speed. A vertically running gecko can cover 15 times the length of its body in a single second. So far, scientists have focused their attention on the…
Elephant Memories May Hold Key To Survival: A recent study by the Wildlife Conservation Society and the Zoological Society of London (ZSL) suggests that old female elephants--and perhaps their memories of distant, life-sustaining sources of food and water--may be the key to survival during the…
I'm studying sacrificial deposits made by people of a lo-tech culture in Sweden 3000 years ago, largely in wetlands. This was long before any word relevant to the area was written. The objects were mainly recovered during the decades to either side of 1900. Yesterday while trawling through back…