A guinea pig's teeth never stop growing throughout its ... This phenomenon is known as being precocial and is relatively rare. Seeing these pups makes it even more astounding how nature perfects ...

In addition, any debilitating illness that causes the guinea pig to remain sedentary (decreasing ... though this is rare. Guinea pigs with osteoarthritis and osteomyelitis have poorer prognoses ...

A rare pigeon species was documented for the first ... a small island off the coast of eastern Papua New Guinea. "After a month of searching, seeing those first photos of the pheasant-pigeon ...