Alongside his interest in extinct British animals, Tom's passion for sharks led him to find out more about angel sharks. Once a common feature of Britain's shores, this bottom dwelling species is now extinct in the North Sea and critically endangered throughout its remaining range.
This led Tom to seek out this enigmatic species in the shores off the Canary Islands, which we see in the opening sequence of Angel of the Atlantic. The presented set-up to the natural history to come was one of Nigel Marven's favourite parts, and he thought it was done with great skill, commenting "we don't want Tom to take our jobs, of course, but this really is some excellent presenting. It's great to start on a contrasting landscape to emphasise the journey into the water, which provides intrigue and hooks the viewer."