Listening: Insects in extreme places

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B2 | Listening from video | 11 min

Watch the video (0:07 - 4:40). You can watch more than once, then answer the questions.

How do the long legs of Sahara silver ants help them in the desert?

____ They help the ants dig into cool sand quickly.____ They lift the body off the hot ground and allow great speed.____ They let the ants carry food over long distances.

ONE WORD from the video.

The ants' silver colour comes from a coat of tightly packed ____ .

The hair of the silver ants helps to trap heat near their bodies.

____ True____ False____ Not Given

A NUMBER from the video.

Near volcanoes, the ground can reach temperatures of up to ____ degrees Celsius.

What do scientists think helps ice crawlers cope with the cold?

____ They grow a thick coat of hair.____ They sleep through the coldest months.____ They can make more of a sugar that protects their cells.

Ice crawlers usually live longer than other types of insect.

____ True____ False____ Not Given

How do alkali fly larvae deal with the very salty water of Mono Lake?

____ They use special kidney-like organs to get rid of extra salt.____ They stay deep underwater where the salt level is lower.____ They only live in the freshwater parts of the lake.

A NUMBER from the video.

The air bubble around an alkali fly gives it oxygen for up to ____ minutes.

Which insects are the only group known to survive the depths of the ocean?

____ Beetles that live on deep-sea fish____ Parasitic lice that live on seals and walruses____ Flies that travel in underwater air bubbles

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