Claudio Contreras / Grey whale (Eschrichtius robustus) breaching, San Ignacio Lagoon, El Vizcaino Biosphere Reserve, Baja California, Mexico, March

Claudio Contreras / Grey whale (Eschrichtius robustus) tail, San Ignacio Lagoon, El Vizcaino Biosphere Reserve, Baja California, Mexico, March

Claudio Contreras / Grey whale (Eschrichtius robustus) calf, San Ignacio Lagoon, El Vizcaino Biosphere Reserve, Baja California, Mexico, February

Mark Carwardine / Grey whale (Eschrichtius robustus) at water surface with mouth open showing baleen plates, San Ignacio Lagoon, Baja California, Mexico

Tony Wu / Grey whale (Eschrichtius robustus) calf at ocean surface, with its mother visible, Magdalena Bay, Baja California, Mexico.

Pascal Kobeh / Short-finned pilot whale (Globicephala macrorhynchus) close to the surface, Costa Rica. Pacific ocean.

Hiroya Minakuchi / Gray Whale (Eschrichtius robustus) spyhopping, San Ignacio Lagoon, Baja California, Mexico

Doc White / Humpback Whale (Megaptera novaeangliae) female. Tonga, South Pacific, September.

Doc White / Close up of Grey whale (Eschrichitius robustus) eye, Baja California, Mexico, Pacific

DOC WHITE / Grey whale {Eschrichitius robustus} San Ignacio lagoon, Mexico

Konrad Wothe / Gray Whale (Eschrichtius robustus) breaching while tourists watch, Mexico

Michio Hoshino / Gray Whale (Eschrichtius robustus) trapped by early freeze up, Alaska