Todd Pusser / Female Dense beaked whales {Mesoplodon densirostris} underwater, Caribbean.

Todd Pusser / Female Dense beaked whale {Mesoplodon densirostris} surfacing, Bahamas, Caribbean.

Sergio Hanquet / Blainville's beaked whale (Mesoplodon densirostris) hoisted in air, prior to necropsy to determine reason for death. Tenerife, Canary Islands. 2015.

Sergio Hanquet / Blainville's beaked whale (Mesoplodon densirostris) washed up dead on beach, man standing in water looking at whale, prior to necropsy to determine reason for death. Tenerife, Canary Islands. 2015...

Sergio Hanquet / Blainville's beaked whale (Mesoplodon densirostris) blowhole and beak at water surface. El Hierro, Canary Islands.

Sergio Hanquet / Blainville's beaked whale (Mesoplodon densirostris) dorsal fin at surface. El Hierro, Canary Islands.

Sergio Hanquet / Blainville's beaked whale (Mesoplodon densirostris) male, dorsal fin and scars on body. El Hierro, Canary Islands.

Sergio Hanquet / Blainville's beaked whale (Mesoplodon densirostris) male, blowhole and beak, scars on body. El Hierro, Canary Islands.

Sergio Hanquet / Blainville's beaked whale (Mesoplodon densirostris) male, blowhole and scars on body. El Hierro, Canary Islands.

Sergio Hanquet / Blainville's beaked whale (Mesoplodon densirostris) male, scars on body visible above water surface. El Hierro, Canary Islands.

Rebecca Robinson / Illustration of the diving behaviour of a Sowerby's Beaked Whale (Mesoplodon bidens).

Rebecca Robinson / Illustration of the diving behaviour of a Strap-Toothed Whale (Mesoplodon layardii).

Rebecca Robinson / Illustration of the diving behaviour of Trues Beaked Whale (Mesoplodon mirus).

Rebecca Robinson / Illustration of the blow and diving behaviour of Gervais Beaked Whale (Mesoplodon europaeus).

Rebecca Robinson / Illustration of Deraniyagalas beaked whale (Mesoplodon hotaula).

Rebecca Robinson / Illustration of the surface profile with blow and diving behaviour of Hubbs Beaked Whale (Mesoplodon carlhubbsi).

Rebecca Robinson / Illustration of the surface profile with blow and diving/breaching behaviour of Hectors Beaked Whale (Mesoplodon hectori) male.

Rebecca Robinson / Illustration of Blainvilles Beaked Whale / Atlantic Beaked Whale (Mesoplodon densirostris) surface profile with blow and dive sequence.

Rebecca Robinson / Illustration of the dive sequence of Andrew's beaked whale (Mesoplodon bowdoini).

Rebecca Robinson / Illustration of the dive sequence of Ginkgo-Toothed Beaked Whale (Mesoplodon ginkgodens).

Rebecca Robinson / Illustration of the dive sequence of Stejnegers Beaked Whale (Mesoplodon stejnegeri).

Rebecca Robinson / Illustration of the dive sequence of Pygmy Beaked Whale (Mesoplodon peruvianus).

Rebecca Robinson / Illustration of the dive sequence of Perrins Beaked Whale (Mesoplodon perrini).

Rebecca Robinson / Illustration of the dive and breach sequence of Grays Beaked Whale (Mesoplodon grayi).

Yumiko Wakisaka / Pygmy Beaked Whale (Mesoplodon peruvianus)

Yumiko Wakisaka / Perrin's Beaked Whale (Mesoplodon perrini)

Yumiko Wakisaka / True's Beaked Whale (Mesoplodon mirus)

Yumiko Wakisaka / Strap-toothed Whale (Mesoplodon layardii)

Yumiko Wakisaka / Stejneger's Beaked Whale (Mesoplodon stejnegeri)

Yumiko Wakisaka / Spade-toothed Whale (Mesoplodon traversii)

Yumiko Wakisaka / Sowerby's Beaked Whale (Mesoplodon bidens)

Yumiko Wakisaka / Arch-beaked Whale (Mesoplodon carlhubbsi)

Yumiko Wakisaka / Hector's Beaked Whale (Mesoplodon hectori)

Yumiko Wakisaka / Gray's Beaked Whale (Mesoplodon grayi)

Yumiko Wakisaka / Ginkgo-toothed Beaked Whale (Mesoplodon ginkgodens)

Yumiko Wakisaka / Gervais's Beaked Whale (Mesoplodon europaeus)

Yumiko Wakisaka / Dense Beaked Whale (Mesoplodon densirostris)

Yumiko Wakisaka / Andrew's Beaked Whale (Mesoplodon bowdoini)

Rebecca Robinson / Illustration of Deraniyagala's beaked whale (Mesoplodon hotaula) surface profile with calf.

Rebecca Robinson / Illustration of a female Spade-toothed Whale (Mesoplodon traversii)

Hiroya Minakuchi / Arch-beaked Whale (Mesoplodon carlhubbsi) skull

Hiroya Minakuchi / Ginkgo-toothed Beaked Whale (Mesoplodon ginkgodens) skull

Mark Carwardine / Pygmy / Lesser / Peruvian beaked whale (Mesoplodon peruvianus) Extremely rare photograph of live animal at sea, near San Diego island, Sea of Cortez (Gulf of California), Mexico, Probable female

Mark Carwardine / Pygmy / Lesser / Peruvian beaked whale (Mesoplodon peruvianus) Extremely rare photograph of live animal at sea, near San Diego island, Sea of Cortez (Gulf of California), Mexico, Probable female

Mark Carwardine / Pygmy / Lesser / Peruvian beaked whale (Mesoplodon peruvianus) Extremely rare photograph of live animal at sea, near San Diego island, Sea of Cortez (Gulf of California), Mexico, Probable female

Mark Carwardine / Pygmy / Lesser / Peruvian beaked whale (Mesoplodon peruvianus) Extremely rare photograph of live animal at sea, near San Diego island, Sea of Cortez (Gulf of California), Mexico, Probable female

Mark Carwardine / Pygmy / Lesser / Peruvian beaked whale (Mesoplodon peruvianus) Extremely rare photograph of live animal at sea, near San Diego island, Sea of Cortez (Gulf of California), Mexico, Probable female

Mark Carwardine / Pygmy / Lesser / Peruvian beaked whale (Mesoplodon peruvianus) Extremely rare photograph of live animal at sea, near San Diego island, Sea of Cortez (Gulf of California), Mexico, Probable female

Mark Carwardine / Pygmy / Lesser / Peruvian beaked whales(Mesoplodon peruvianus) Extremely rare photograph of live animal at sea, near San Diego island, Sea of Cortez (Gulf of California), Mexico, Probable male

Mark Carwardine / Pygmy / Lesser / Peruvian beaked whales(Mesoplodon peruvianus) Extremely rare photograph of live animal at sea, near San Diego island, Sea of Cortez (Gulf of California), Mexico,

Mark Carwardine / Pygmy / Lesser / Peruvian beaked whale (Mesoplodon peruvianus) Extremely rare photograph of live animal at sea, near San Diego island, Sea of Cortez (Gulf of California), Mexico, Probable female

Mark Carwardine / Pygmy / Lesser / Peruvian beaked whale (Mesoplodon peruvianus) Extremely rare photograph of live animal at sea, near San Diego island, Sea of Cortez (Gulf of California), Mexico, Probable male

Mark Carwardine / Aerial view of Beaked whale - almost certainly Peruvian / Lesser beaked whale (Mesoplodon peruvianus) (virtually no confirmed records of sightings in the wild) Sea of Cortez (Gulf of California), Baj...

Mark Carwardine / Skull of Lesser / Peruvian beaked whale, Peru {Mesoplodon peruvianus}

Toby Roxburgh / Scientists from the Welsh Marine Environmental Monitoring team and ranger from Kenfig Nature Reserve looking at the carcass of Sowerby's Beaked Whale (Mesoplodon bidens), washed up on the coast near P...

Toby Roxburgh / Scientist from the Welsh Marine Environmental Monitoring team dissecting the carcass of Sowerby's Beaked Whale (Mesoplodon bidens) washed up on beach near Porthcawl to try to determine the cause of de...

Toby Roxburgh / Scientists from the Welsh Marine Environmental Monitoring team photographing the carcass of Sowerby's Beaked Whale (Mesoplodon bidens) washed up on beach near Porthcawl to try to determine the cause o...

Toby Roxburgh / Scientist from the Welsh Marine Environmental Monitoring team dissecting the carcass of a Sowerby's Beaked Whale (Mesoplodon bidens) washed up on a beach in order to try to help determine the cause of...

Toby Roxburgh / Scientists from the Welsh Marine Environmental Monitoring team dissecting the carcass of a Sowerby's Beaked Whale (Mesoplodon bidens) washed up on a beach in order to try to help determine the cause o...

Toby Roxburgh / Scientist from the Welsh Marine Environmental Monitoring team and ranger from Kenfig Nature Reserve looking at the carcass of a Sowerby's Beaked Whale (Mesoplodon bidens), washed up on the coast near...

Todd Pusser / Female Dense beaked whale {Mesoplodon densirostris} surfacing, Bahamas, Caribbean.

Todd Pusser / Male and female Dense beaked whale {Mesoplodon densirostris} surfacing, Caribbean.

Chris Newbert / Dense Beaked Whale (Mesoplodon densirostris), Kona, Hawaii

Martin Camm / Carwardine / Illustration of skull of Bahamonde's beaked whale (Mesoplodon traversii) Spade-toothed whale, Ziphidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Hector's / New Zealand beaked whale (Mesoplodon hectori) male, Ziphiidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Andrew's / Bowdoin's Beaked Whale (Mesoplodon bowdoini), Ziphidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Blainville's / Tropical / Dense Beaked Whale (Mesoplodon densirostris) female, Ziphidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Peruvian Beaked / Pygmy Beaked / Lesser Beaked / Bandolero Beaked Whale (Mesoplodon peruvianus) male, Ziphidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Strap-toothed / Layard's beaked whale (Mesoplodon layardii) Ziphidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Stejneger's / Bering Sea / North Pacific beaked whale (Mesoplodon stejnegeri) male, Ziphidae (Wildlife Art Company).

Martin Camm / Carwardine / Hubbs' / Arch beaked whale (Mesoplodon carlhubbsi) Ziphiidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Gray's beaked whale (Mesoplodon grayi) Haast's beaked whale; male, Ziphiidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Gray's / Haast's beaked whale (Mesoplodon grayi) Ziphiidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Ginkgo-toothed beaked whale (Mesoplodon ginkgodens) Ziphiidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Blainville's / Tropical / Dense Beaked Whale (Mesoplodon densirostris) male, Ziphidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of True's beaked whale (Mesoplodon mirus) male, Ziphidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of True's beaked whale (Mesoplodon mirus) female, Ziphidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Sowerby's Beaked Whale (Mesoplodon bidens) female, Ziphidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of male Gervais' beaked whale (Mesoplodon europaeus) Gulf Stream beaked whale; Ziphiidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Gervais' Beaked Whale / Gulf Stream Beaked Whale (Mesoplodon europaeus) female, Ziphiidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Peruvian Beaked / Pygmy Beaked / Lesser Beaked / Bandolero Beaked Whale (Mesoplodon peruvianus) female, Ziphidae (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Perrin's Beaked Whale (Mesoplodon perrini) Ziphidae; first found in May 1975 off California (Wildlife Art Company).

Martin Camm / Carwardine / Illustration of Sowerby's / North Sea / North Atlantic beaked whale (Mesoplodon bidens) dive sequence. Surface profile, (Wildlife Art Company).

Toby Roxburgh / Scientists from the Welsh Marine Environmental Monitoring team dissecting the carcass of a Sowerby's Beaked Whale (Mesoplodon bidens) washed up on beach in order to determine cause of death. Near Port...

Toby Roxburgh / Scientists from the Welsh Marine Environmental Monitoring team dissecting the carcass of Sowerby's Beaked Whale (Mesoplodon bidens) washed up on a beach near Porthcawl to try to determine cause of dea...

Toby Roxburgh / Close-up of the carcass of Sowerby's Beaked Whale (Mesoplodon bidens) being disected by the Welsh Marine Environmental Monitoring team in order to determine cause of death. Near Porthcawl, South Wales...

Toby Roxburgh / Scientists from the Welsh Marine Environmental Monitoring team measure the carcass of a Sowerby's Beaked Whale (Mesoplodon bidens), washed up on the coast near Porthcawl, South Wales, Model released.

Sergio Hanquet / Gervais' beaked whale (Mesoplodon europaeus) El Hierro, Canary Islands.

Mark Carwardine / Aerial shot of a female Pygmy beaked whale (Mesoplodon peruvianus) surfacing and diving, Sea of Cortez, Baja California, Mexico.

Mark Carwardine / Aerial shot of a female Pygmy beaked whale (Mesoplodon peruvianus) surfacing and diving, Sea of Cortez, Baja California, Mexico.

Martin Camm / Carwardine / Andrews' beaked whale (Mesoplodon bowdoini) adult male No more than 15 illustrations by Martin Camm, Rebecca Robinson and/or Toni Llobet to be used in a single project or book edition, except...

Martin Camm / Carwardine / Andrews' beaked whale (Mesoplodon bowdoini) adult male No more than 15 illustrations by Martin Camm, Rebecca Robinson and/or Toni Llobet to be used in a single project or book edition, except...

Martin Camm / Carwardine / Andrews' beaked whale (Mesoplodon bowdoini) adult female No more than 15 illustrations by Martin Camm, Rebecca Robinson and/or Toni Llobet to be used in a single project or book edition, excep...

Martin Camm / Carwardine / Andrews' beaked whale (Mesoplodon bowdoini) Sub-adult male flukes (underside) No more than 15 illustrations by Martin Camm, Rebecca Robinson and/or Toni Llobet to be used in a single project o...

Martin Camm / Carwardine / Andrews' beaked whale (Mesoplodon bowdoini) Old adult male flukes (underside) No more than 15 illustrations by Martin Camm, Rebecca Robinson and/or Toni Llobet to be used in a single project o...

Martin Camm / Carwardine / Andrews' beaked whale (Mesoplodon bowdoini) adult male lower jaw No more than 15 illustrations by Martin Camm, Rebecca Robinson and/or Toni Llobet to be used in a single project or book editio...