The Javan rhino (Rhinoceros sondaicus) once roamed across many countries in Southeast Asia. Around 2,000 years ago, they were ...

A group of male koalas were filmed grooming and playing together, in contrast to their solitary reputation, probably as a result of an unusually dense population in southern Victoria ...

Researchers believe that Matschie's tree kangaroos are fairly solitary animals. Females and males have non-overlapping home ranges, but a male's range will overlap several females' range.

A solitary animal, Javan rhinos don’t form social groups but live alone except when they mate or care for their young. Scientists think their lifespan may be around 30 to 40 years. We know they ...

These solitary animals live alone, and in May and June females give birth to litters of one to six kits that they raise alone. The young are able to survive on their own by fall.

While regeneration has long been the domain of colonial tunicates, a solitary species of sea squirt was able to regenerate into multiple, fully functional individuals within a month of being cut up.