Colossal Biosciences – the US-based company that has generated headlines with its plans to bring the likes of the woolly mammoth and the Tassie tiger back to life – has set its sights on resurrecting another extinct creature: the dodo. Colossal boss Ben Lamm said the flightless bird was a “symbol of man-made extinction”, with the last specimen killed in 1681 on the island of Mauritius. The dodo’s closest living relative is the Nicobar pigeon, and the company will study the genetic differences between the 2 birds before attempting to edit the pigeon cells to create dodo cells. From there, the tweaked cells could be placed into the developing egg of another bird – but the technology is still in the early stages. Not everyone’s on board with the idea of resurrecting extinct species – many believe the focus should be on preserving what we have. And some would say the world already has enough stupid birds…