A baby turtle appeared to be eaten by a seagull during Blue Planet Live on BBC One on Sunday evening.
Broadcaster and Springwatch host Chris Packham is among those set to present a spin-off series to David Attenborough's Blue Planet.
Blue Planet II fans were left in shock after the much-loved documentary series missed out on a BAFTA TV gong.
Patrick Dykstra was filming killer whales in the icy Norwegian sea last year when the terrifying close shave occurred.