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How many species of frog are in the picture? Genetics often says ‘more than we thought’. Michael Lee (Flinders University & South Australian Museum)

The Earth’s biodiversity could be much greater than we thought

The Earth is full of many varied species from the largest mammals to the tiniest organisms. But we now think there could be ten times more species than was originally thought.
A makeshift shrine to Harambe, the zoo gorilla whose death has raised some uncomfortable moral questions. William Philpott/Reuters

How do we weigh the moral value of human lives against animal ones?

We tend instinctively to value human lives over non-human ones. But is there a point where the scales might tip the other way?
Menageries of the 19th century brought exotic animals (and people) to Western society – as do many zoos today.

Is it time to break with colonial legacy of zoos?

The shooting death of Harambe the gorilla has once again raised concern for the well-being of zoo animals. But animals in zoos may be fated by the very institution we have created to protect them.
In a sense, aren’t they one and the same? 'Heads' via www.shutterstock.com

Why it’s impossible to actually be a vegetarian

When you think about it, it’s a bit strange to view food through a lens of “meat” and “not meat” – especially when plants consume animals, and vice versa.
When elephants venture into human settlements, they cause significant damage to crops and property. Shutterstock

Why it might take more than the buzz of bees to ward off elephants

Elephant numbers are increasing in parts of sub-Saharan Africa. Their search for food is leading them into conflict with farmers living adjacent to game parks. Bees could prove to be the answer to the problem.

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