What do you call a group of kangaroos?

Question: What do you call a group of kangaroos?

A group of kangaroos is called a troop. Other animals with quite unique congregation names are the following:

apes - a shrewdness
ferrets - a business
hippopotamuses - a bloat
porcupines - a prickle
rhinoceroses - a crash
giraffes - a tower

For other what do you call a group of certain animals please go to the link below.

Animal Congregations