Wednesday, 21 January 2026

Our earliest vertebrate ancestors may have had four eyes

 

Illustration of Haikouichthys, a fish from the Cambrian period, with a second pair of eyes suggested by fossil evidence. Image courtesy of Xiangtong Lei, Sihang Zhang

Joel Kontinen

Extraordinary fossils of 518-million-year-old jawless fish, among the earliest known vertebrates, appear to show that these animals had two pairs of eyes

Over half a billion years ago, the world’s oldest known vertebrates seem to have sported an extra set of eyes – and humans may still carry a remnant of this ancient evolutionary innovation.

But this isn’t a story of evolutionary innovation. It is a story of Darwinian speculation. And fossils tell the story that evolutionists tend to like.

Extraordinary fossils of two species of jawless fish called myllokunmingids were found by Peiyun Cong at Yunnan University in China, and his colleagues between 2019 and 2024, on the banks of Dianchi Lake in south-west China.

Source: 

James Woodford 2026 Our earliest vertebrate ancestors may have had four eyes | New Scientist 21 January