kangaroo
shrew
kangaroo rat
spiny ant eater
C. kangaroo rat
dogs and cats
monkeys and apes
cows and sheeps
rats and rabbits
lion, tiger, panther, cat
goat, sheep, bison
horse, zebra, donkey, pony
none of these
Rodentia
Insectivora
Sivenia
Shiroptera
skin with glands
hairy skin
true placentation
locomotary hindlimbs
incisors
canines
premolars
molars
Lemuroidea
Anthropoidea
Primates
Any of these
mammals with a single nostril
mammals with a single gill slit
mammals with a single cloacal aperture
mammals with a single mouth
Whales
Penguins
Bears
None of these
Artiodactyla
Proboscidea
Sirenia
Perissodactyla
India
Malaysia
Africa
New Zealand
gnu
mustang
ibex
puma
man
gorilla
gibbon
chimpanzee
sound
tail
external ear
fore limbs
dinosaur
duck
fossil mammal
monotreme mammal
a four-chambered heart
a pair of testis
a pair of lungs
a diaphragm between thorax and abdomen
echidna
shrew
dolphin
kangaroo
Proboscida
Ruminants
Perissodactyla
Artiodactyla
molars
premolars
incisors
canines
presence of pinna and diaphragm
presence of hair and mammary gland
presence of sweat and sebaceous glands
viviparity and placenta
gibbon
chimpanzee
oranguttan
none of these
Chiroptera
Rodentia
Insectivora
Edentata
Proboscida
Sirenia
Cetacea
None of these
plantigrade locomotion
digitigrade locomotion
unguligrade locomotion
terrestrial locomotion
rabbit
sloth
pika
porcupine
Cetacea
Chiroptera
Rodentia
Primata
eutherians
protherians
metatherians
marsupials
presence of thecodont dentition
a four-chambered heart
presence of corpus callosum in brain
presence of diaphragm
sea cows, sea lions and walrus
horses, zebras, and tapirs
whales, dolphins and porpoises
goat, sheep and bison
Frog
Rabbit
Pigeon
Lizards
Pig
Camel
Cow
Goat