Brian Skerry is a National Geographic photographer known for some spectacular underwater shots. Skerry works year-round shooting marine life, from tropical coral reefs to the mighty whale shark. This month, Skerry's work is featured in the National Geographic cover story, "Thinking Like a Dolphin."

Skerry joined Boston Public Radio Thursday to talk about getting his dolphin pictures, how close he got, how many shots it takes to get the right one, and more.

Audio from the segment will be posted later today. Head here to see the National Geographic May 2015 cover story on dolphins, which is out on newsstands and digital newsstands now. You can follow Skerry on Instagram as well.