Around 1,000.
There are many different species of mammals, as well as many different indivudual members of any species, and reproductive rates vary both by species and by individual (after all, people are also mammals, and not every person has the same number of children). The number of offspring per mammal therefore varies between zero and several hundred.
the harmless strain of E.Coli
North America and Australia
North America is land and is up north, but Antarctica is ice and is down south. Millions live in North America, but not very many live in Antarctica. North America's summer is Antarctica's winter, and North America's winter is Antarctica's summer! Also, North America is much bigger than Antarctica.
The extinct dog-like mammals are from a biological family of carnivorous mainly called Canidae. The Canidae includes almost 34 species from the manned wolf to bush dogs (short in length).
how many species of Jays are in the North America
In North America one could find kangaroo rats, jackrabbits and coyotes and many other species of mammal.
There are at least 35 species of pine trees known to be found in North America. This is roughly a third of all species on Earth.
About 1000
15% of animals
caribou
There are over 200 species of squirrels worldwide, with around 50 of them living in North America. These species can be found across various habitats, from forests to urban areas, and they play important roles in ecosystem dynamics and seed dispersal.
4000
Two
There is just one species of opossum in North America, and that is the Virginia opossum.
There are many, possibly hundreds of species of mammals in Pennsylvania.
seven seven