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...adult stage they continue to be carnivorous. They eat midges and gnats and mosquitoes, butterflies, bees, very often each other. That's what they eat. And they're eaten in turn by birds. Hobbies, for example, make a particular speciality of catching dragonflies. NARRATOR Now part of the terrestrial food web, adult damselflies and dragonflies are also prey for a diversity...

...adults (mainly pregnant women attending for antenatal care) and there is a delivery couch in a side room. However, around 90% of rural women choose to give birth in their own homes with a Health Extension Worker present or a traditional birth attendant. Postnatal sepsis and haemorrhage are the main reasons for the high mortality rate: remember it was 4.4 maternal deaths...

...adults and children actually need to see it happen in order to believe it. After the first cut, you should have a band that was twice as long as the original and half the width. The second cut produces two connected bands of the same length but half the width – a less obvious result. A useful general strategy for stimulating pupils’ curiosity and channelling the...