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mammal
Mammals can maintain a constant body temperature.
experiments on animals
Animal experiments are necessary for the advancement of science, but there are also ethical issues.
experimental animal
He is learning about the handling of experimental animals.
roundworm, nematode, member of the phylum Nematoda.
Roundworms are an important part of the soil and contribute greatly to the health and fertility of the soil.
zoologist
He is a world-renowned zoologist.
pet
My pet is a dog.
a cnidarian
Cnidarians are a type of marine life, including jellyfish and corals.
petting zoo
We went to the petting zoo on the weekend.
(marine biology) zoobenthos
The ecosystem of zoobenthos is an important field of study in marine biology.
(zoology) echinoderm
Echinoderms are a type of marine life, many of which have star-shaped bodies.
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