Which group of animals have the most members?

Answer 1

Kingdom is the largest group in this series:

kingdom

Phylum,

class

Order

Family

Genus

Species

Answer 2

It depends on whether you are asking about "number of members in it" or "size." The group with the largest number of members in it would be insects (some people may not consider insects as animals, but to scientists, insects are included in that grouping). As for the animal group with the largest size, perhaps the blue whale species, or perhaps elephants.

Answer 3

The largest group of animals are invertebrates

Answer 4

Insects are far more numerous than any other animal.

Answer 5

Rodents - about forty percent of all mammal species are rodents.