Sirenia
Rodentia
Camivora
Lemuroidea
field rat
snail
jackal
parakeet
bony fishes
whales
sea lions
sea anemones
sea cows, sea lions and walrus
horses, zebras, and tapirs
whales, dolphins and porpoises
goat, sheep and bison
kangaroo
shrew
kangaroo rat
spiny ant eater
lemur
loris
baboon
chimpanzee
mammals
birds
reptiles
amphibians
eutherian mammals only
eutherians and prototherians
metatherians and prototherians
metatherians and eutherians
produce ultrasonic sound
produce infrasonic sound
have powerful nocturnal eyes
have powerful wings
Chiroptera
Rodentia
Insectivora
Edentata
Proboscida
Ruminants
Perissodactyla
Artiodactyla
hedgehog
porcupine
shrew
none of these
hairs only
hairs and claws
hairs, claws and horns
hairs, horns and hooves
sound
tail
external ear
fore limbs
Pig
Camel
Cow
Goat
Rodentia
Carnivora
Edentata
Leguminea
gibbon
chimpanzee
oranguttan
none of these
molars
premolars
incisors
canines
dinosaur
duck
fossil mammal
monotreme mammal
Cetacea
Chiroptera
Rodentia
Primata
a four-chambered heart
a pair of testis
a pair of lungs
a diaphragm between thorax and abdomen
Proboscida
Sirenia
Cetacea
None of these
Rodentia
Insectivora
Sivenia
Shiroptera
gnu
mustang
ibex
puma
presence of thecodont dentition
a four-chambered heart
presence of corpus callosum in brain
presence of diaphragm
India
Malaysia
Africa
New Zealand
Dolphins
Oractologus cuniculus
Homosapiens fassilis
Homosapiens sapiens
echidna
shrew
dolphin
kangaroo
Lemuroidea
Anthropoidea
Primates
Any of these
plantigrade locomotion
digitigrade locomotion
unguligrade locomotion
terrestrial locomotion