Apes A shrewdness
Asses A pace
Badgers A cete
Bats A colony
Bears A sloth, sleuth
Buffalo A gang, an obstinacy (I suspect these refer to old world buffalo; use "herd" for American bison)
Cats A clowder, a pounce; for kittens...A kindle, litter, an intrigue
Cattle A drove, herd
Deer A herd, bevy (refers only to roe deer)
Dogs A litter (young), pack (wild), cowardice (of curs); specific to hounds...A cry, mute, pack, kennel
Elephants A herd
Elk A gang
Ferrets A business
Fox A leash, skulk, earth
Giraffes A tower
Goats A tribe, trip
Gorillas A band
Hippopotamuses A bloat
Horses A team, harras, rag (for colts), stud (a group of horses belonging to a single owner, string (ponies)
Hyenas A cackle
Kangaroos A troop
Leopards A leap
Lions A pride
Martens A richness
Moles A labor
Monkeys A troop, barrel
Mules A pack, span, barren
Otters A romp
Oxen A team, yoke
Pigs A drift, drove, litter (young), sounder (of swine), team, passel (of hogs), singular (refers to a group of boars)
Porcupines A prickle
Rabbits A colony, warren, nest, herd (domestic only), litter (young); specific to hares...A down, husk
Rhinoceroses A crash
Seals A pod, herd
Sheep A drove, flock, herd
Squirrels A dray, scurry
Tigers A streak
Whales A pod, gam, herd
Wolves A pack, rout or route (when in movement)