Why has the African elephant been split into two species?

More from guardianscience

Science Weekly podcast: The Burning Question – can we quit fossil fuels?

Inside the world of wildlife trafficking (part two)

How do our genes actually work? Podcast

Cop26: the final day – have we made any progress on saving the planet?

The reality behind NFTs

Nasa’s new space telescope and its search for extraterrestrial life

Can we really solve the climate crisis by planting trees? (part two)

Is it possible to enhance and rewire the adult brain? – Science Weekly podcast

Poles apart: how do we save society? - Science Weekly podcast

Are we really ready to live with Covid-19?