俗话说“条条大路通罗马”，背诵
动物学
gregarious
swarm
flock
herd
mammal
carnivore
carnivorous
appetite
herbivorous
omnivorous
predator
predatory
prey
poikilotherm
rodent
scavenger
microbe
reptile
homotherm
primate
primates
mollusk
coelenterate
vertebrate
invertebrate
finch
bird
fowl
monster
hordes
insect
worm
beast
aquatic
amphibian
migrate
graze
gasp
peck
trot
dormant
offspring
spawn
pregnant
hatch
breed
domesticate
fertilize
regeneration
reproduce
squeak
chirp
hibernate
camouflage
extinction
monogamous
polyandrous
nest
niche
pest
habitat
rhinoceros
chimpanzee
baboon
gorilla
lizard
moth
canary
caterpillar
dinosaur
chameleon
larva
bat
family
class
suborder
order
genus
antenna
tentacle
brain
spleen
hide
spine
spineless
toe
bill
beak
fuzzy
head
hump
scale
wing
fluffy
carnal
nervous
fat
grease
greasy
turtle
beaver
jellyfish
starfish
whale
porpoise
dolphin
prawn
shrimp
lobster
sponge
plankton
oyster
clam
coral
crab