mammals breathe... through their ...	air -- lungs
mammals are born from.... and drink.....	their mother's womb -- their mother's milk
mammals are viviparous or oviparous	viviparous
the skin of the mammals is covered	with hair or fur
mammals are aquatic or terrestrial?	most are terrestrial
how many legs do the mammals have?	most of them have four
carnivores... for food	hunt
they have .... teeth and ..... on their feet	sharp -- claws
examples of carnivores	tigers, dogs, polar bears
pezuñas	hooves
most of mammals with hooves are .... , but some are ...	herbivores --- omnivores
examples mammals with hooves	zebras, sheep, goats, pigs
primates are ..... mammals	terrestrial
primates have hands and feet with ...... and ......	five fingers --- toes
dedo del pie	toe
primates use fingers and toes to	hang from branches, hold things and make simple tools
colgarse de las ramas	hang from branches
agarrar cosas	hold things
objeto, herramienta	tool
human beings belong to....	primates
examples of primates	gorillas, chimpanzees, organgutans and monkeys
cetaceans are ..... mammals	aquatic
cetaceans have got .... bodies and move using .... and ....	long --- fins --- tail
aletas	fins
cola	tail
cetaceans come to the .... of the water to ....	surface ---- breathe
cetaceans have ..... and they breathe in air through a hole called ....	lungs --- blowhole
espirá****	blowhole
examples of cetaceans	dolphins and whales
most of birds are .... and can ....	terrestrial --- fly
some birds spend time in water, ..... and .....	swimming --- feeding
alimentarse, comer	feed
the skin of the birds is covered with	feathers
plumas	feathers
birds are born from .... laid in ....	eggs --- nests
birds are oviparous or viviparous?	oviparous
birds walk with their ... and fly with their ....	legs --- wings
birds have got a .... for eating	beak
pico	beak
birds breathe through their...	lungs
birds groups are...	flightless birds, waterfowl, birds of prey, songbirds
flightless birds ... , they have ... wings and .... legs	cannot fly --- small --- strong
example of flightless birds	ostrich
waterfowl have their .... connected by a ..... to help them ....	toes --- membrane --- swim
example of waterfowl	swan, duck
birds of prey are .... , their .... and ... beaks are sharp and strong	carnivores --- claws --- beaks
examples of birds of prey	hawk, falcon
songbirds are the ..... group. They are usually ... and have .... beaks	largest --- small --- short
example of songbirds	sparrow, pigeon

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