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How specimens are preserved

A salvaging officer bags the animal to contain the rotting smell.

It is put in an icebox to slow decomposition.

The animal is weighed and measured at the office because it might shrink or stretch over time.

It is then left in a freezer for at least two weeks to kill pathogens and parasites before any research is done.

An autopsy may be conducted to deduce the cause of death.

Mammals are typically dry preserved - any part that decomposes is removed. Small animals like bats are preserved whole in alcohol.

These are kept in the Lee Kong Chian Natural History Museum, which has some 500,000 specimens. The new museum is scheduled to open next year.