arachnids
A herd.
a pride
a school of fish
A pride.
Land Mammals
Team
I believe it is called a "troop".
A group of giraffe is called (believe it or not) a tower of giraffe.
Troop or Tribe
The address of the Troup Genealogical-Historical Society is: Po Box 366, Troup, TX 75789-0366
Guppy Troup was born in 1950.