Analysing the contents of an iguana stomach .

Analysing the contents of an iguana stomach .

Using an ultrasound recorder i to see the tortoise's eggs in their annual sexual cycle.

Using an ultrasound recorder i to see the tortoise's eggs in their annual sexual cycle.

Using radio transmitters under the skin to understand iguana behaviour.

Using radio transmitters under the skin to understand iguana behaviour.

Open University biologist David Robinson talks about his long relationship with the Galapagos Islands and explores some of the issues raised in the video tracks.

Open University biologist David Robinson talks about his long relationship with the Galapagos Islands and explores some of the issues raised in the video tracks.

The research process involved in the study of marine iguanas and giant tortoises in the Galapagos.

The research process involved in the study of marine iguanas and giant tortoises in the Galapagos.