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to make animals produce offspring in a way that is suitable for human beings
all wild animals, considered as a whole, living in the natural environment
(of an animal, plant, etc.) being at risk of extinction
any of the light and soft parts covering the body of a bird
the thick, soft hair that grows on the body of some animals such as cats, dogs, etc.
a tropical bird with bright colors and a curved beak that can be trained to mimic human speech
an animal's foot that typically has a combination of nails, claws, fur, and pads
a large white bear which lives in the North Pole and is well-adapted to its icy environment
a group that animals, plants, etc. of the same type which are capable of producing healthy offspring with each other are divided into
the part of the body of an animal, a bird or a fish that sticks out at the back, which can move
the protection of the natural environment and resources from wasteful human activities
a dormant state in animals, characterized by lowered body temperature and metabolic activity, often during winter to conserve energy
to keep something from change or harm
| Cambridge English: FCE (B2 First) |
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