It has been placed on the list of endangered species.
Mass extinction
It varies, between species, from 1.4 to 2.9
fossil evidence :)
depends if they like dan, they might get jealous and not share at all.
There are around 550 in the wild, and the numbers are increasing slowly.
One species that is increasing in numbers is the polar bear, despite the fact that most people think they are all dying. A report published by the World Conservation Union in 2013 said that there were about 4,200 more polar bears in 2013 than there were in 2001.
pigs are increasing.
When a predator reduces the number of one species in a habitat, the population of competing species can increase. With less competition for food, water, and shelter, a species can thrive and reproduce more rapidly than when it is being out-competed.
Yes!
The majority of kangaroo species have an erratic population pattern, increasing and decreasing with environmental conditions. There are over 60 species of kangaroo, however, and many of the lesser-known species are decreasing in number, especially those in the wallaby family. But the larger creatures commonly recognised as kangaroos, such as Red kangaroos and Grey kangaroos, remain common and prolific.
If the numbers of a species begin to decline dramatically, the species becomes known as an "endangered" species. When the numbers decline so far that the species no longer exists, the species is known to be "extinct."
Species richness
Threatend Species
no.because there are not on the endanger species list.
commensalism
Threatend Species