BBC filmmakers have captured first-of-its-kind footage of more than 1,000 baby spiders eating their mothers — groundbreaking scenes that “delighted and horrified” the documentary’s narrator Sir David Attenborough.

BBC filmmakers have captured first-of-its-kind footage of more than 1,000 baby spiders eating their mothers — groundbreaking scenes that “delighted and horrified” the documentary’s narrator Sir David Attenborough.