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We’ve had to dig deep to bring you this quiz. Can you unearth all the right answers?

This week’s quiz tests all kinds of knowledge from chemical elements to animal communication. Can you get all five questions correct?

The Aussie bush was once full of cute, furry creatures. But these days, quolls, bandicoots and bettongs have a hard time keeping safe from feral foxes and wild dogs. So how can we protect our native animal friends? Out at Mulligan’s Flat Woodland Sanctuary on the outskirts of Canberra, the rangers built fences to protect…

For millions of years, stick insects roamed the beautiful Lord Howe Island. Then one fateful day in 1918, a ship ran aground and fleeing rats decided to make the island home – and stick insects their dinner. Within a few years, people believed the insects were extinct.

A black rhino calf born at Taronga Western Plains Zoo in Dubbo, New South Wales, is cause to celebrate. It’s a precious addition to the family, as rhinos are critically endangered and face extinction due to poaching.

Written by Beth Askham Deep underground in the centre of Australia is evidence of the biggest asteroid impact in the Earth’s history. It wasn’t just a single impact, but a twin strike from a meteorite that may have split into two as it plummeted towards Earth.

Written by Beth Askham On Monday, the Earth survived a close encounter with a very large asteroid. If you think that a massive rock hurtling through space close to Earth is terrifying, be comforted that in this case, close is still 1.2 million kilometres away.

It’s not often that we think of an organism becoming extinct as being a good thing. However, this is the case for smallpox.

The World Health Organisation recently announced that India has gone for more than one year with no new cases of polio. Polio is a highly contagious viral disease often spread through contaminated drinking water.