Idiom
The primary goal of conservation biology is to

Counter the loss of biodiversity
Catalogue species
Integrate human culture back into nature
Estimate the total number of species that exist

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Idiom
Dog in the manger

A person who puts himself in difficulties on account of other people
A person who prevents others from enjoying something useless to himself
A dog that has no kennel of its own
An undersized bull almost the shape of a dog

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