Fossil upends theory of how shark skeletons evolved, say scientists | Sharks

The partial skull of an armoured fish that swam in the oceans over 400m years ago could turn the evolutionary history of sharks on its head, researchers have said. Bony fish, such as salmon and tuna, as well as almost all terrestrial vertebrates, from birds to humans, have skeletons that end up made of bone. […]

Peter Hope Jones obituary | Birds

Peter Hope Jones, who has died aged 85, was a much-loved figure in Welsh ornithology, but his most important contributions to seabird conservation were made while working in Scotland. In Orkney between 1976 and 1978 he lived on the edge of Scapa Flow, established trial cliff sites for annual monitoring of guillemots, razorbills and other […]