A young sperm whale (Physeter macrocephalus) swimming underwater off the coast of Roseau, Dominica, Windward Islands, West Indies, Caribbean, Central America

A young sperm whale (Physeter macrocephalus) swimming underwater, just off the coast of Roseau, Dominica, Windward Islands, West Indies, Caribbean, Central America

A young sperm whale (Physeter macrocephalus) swimming underwater off the coast of Roseau, Dominica, Windward Islands, West Indies, Caribbean, Central America

A young sperm whale (Physeter macrocephalus) swimming underwater, just off the coast of Roseau, Dominica, Windward Islands, West Indies, Caribbean, Central America

Sperm whale (physeter macrocephalus) A young sperm whale beside the hull of a yacht. Azores

Sperm whale juvenile shot with a fisheye n the Azores Portugal

Young Sperm Whale (Physeter macrocephalus) spy-hopping (note the sloughing skin) in the mid-riff region of the Gulf of California (Sea of Cortez), Mexico.

Sperm Whale, Physeter macrocephalus, young, social rubbing in the northern Gulf of California, Mexico

A pod of Sperm whales (Physeter macrocephalus). Sri Lanka

Sperm Whale, Physeter macrocephalus, mother and large calf fluking off the Azores Islands (RR)

Sperm whale (physeter macrocephalus) A young sperm whale rests against a boats hull.Azores

Sperm Whale, Physeter macrocephalus, young, social rubbing in the northern Gulf of California, Mexico

Sperm Whale Mother and Calf - calf in suckling position - shows the size difference between adult and calf. Azores, North Atlantic

Sperm whale. (Physeter macrocephalus). A group of sperm whales socialising. Caribbean.

Sperm Whale (Physeter macrocephalus) social group with small calf. Azores

Sperm Whale Calf, Physeter macrocephalus, surfacing with Bottlenose Dolphins in the northern Gulf of California, Mexico

Sperm Whale, Physeter macrocephalus, calf, head detail, in the northern Gulf of California, Mexico

Sperm Whale, Physeter macrocephalus, calf, vertical underwater in northern Gulf of California, Mexico

Young sperm whale (Physeter macrocephalus) surfacing in the midriff region of the Gulf of California (Sea of Cortez), Baja California, Mexico.

Sperm whale. (Physeter macrocephalus). A small group of sperm whales. Caribbean.

Sperm Whale, Physeter macrocephalus, calf, left unattended by adults, Gulf of California, Mexico

Young Sperm Whale, Physeter catodon, Azores, Atlantic Ocean, Portugal

Young Sperm Whale, Physeter catodon, Azores, Atlantic Ocean, Portugal

Young Sperm Whale, Physeter catodon, Azores, Atlantic Ocean, Portugal

Young Sperm Whale, Physeter catodon, Azores, Atlantic Ocean, Portugal

Young Sperm Whale, Physeter catodon, Azores, Atlantic Ocean, Portugal

Young Sperm Whale, Physeter catodon, Azores, Atlantic Ocean, Portugal

Mother and calf sperm whale, Physeter macrocephalus, Vulnerable (IUCN), Dominica, Caribbean Sea, Atlantic Ocean. Photo taken under permit n°RP 13/365 W-03.

Pod of sperm whale with mother and calf, (Physeter macrocephalus), Vulnerable (IUCN), The sperm whale is the largest of the toothed whales. Sperm whales are known to dive as deep as 1,000 meters in search of squid to eat. Image has been shot in Dominica, Caribbean Sea, Atlantic Ocean. Photo taken under permit n°RP 16-02/32 FIS-5.

Pod of sperm whale socializing, (Physeter macrocephalus), Vulnerable (IUCN), The sperm whale is the largest of the toothed whales. Sperm whales are known to dive as deep as 1,000 meters in search of squid to eat. Image has been shot in Dominica, Caribbean Sea, Atlantic Ocean. Photo taken under permit n°RP 16-02/32 FIS-5.

Sperm whale mother and calf, (Physeter macrocephalus), Vulnerable (IUCN), The sperm whale is the largest of the toothed whales. Sperm whales are known to dive as deep as 1,000 meters in search of squid to eat. Image has been shot in Dominica, Caribbean Sea, Atlantic Ocean. Photo taken under permit n°RP 16-02/32 FIS-5.

Sperm whale mother and calf, (Physeter macrocephalus), Vulnerable (IUCN), The sperm whale is the largest of the toothed whales. Sperm whales are known to dive as deep as 1,000 meters in search of squid to eat. Image has been shot in Dominica, Caribbean Sea, Atlantic Ocean. Photo taken under permit n°RP 16-02/32 FIS-5.

Sub-adult sperm whale try to move away a calf to to mate with a female, (Physeter macrocephalus), Vulnerable (IUCN), The sperm whale is the largest of the toothed whales. Sperm whales are known to dive as deep as 1,000 meters in search of squid to eat. Image has been shot in Dominica, Caribbean Sea, Atlantic Ocean. Photo taken under permit n°RP 16-02/32 FIS-5.

Sperm whale mother and calf, (Physeter macrocephalus), Vulnerable (IUCN), The sperm whale is the largest of the toothed whales. Sperm whales are known to dive as deep as 1,000 meters in search of squid to eat. Image has been shot in Dominica, Caribbean Sea, Atlantic Ocean. Photo taken under permit n°RP 16-02/32 FIS-5.

Sub-adult sperm whale try to move away a calf to to mate with a female, (Physeter macrocephalus), Vulnerable (IUCN), The sperm whale is the largest of the toothed whales. Sperm whales are known to dive as deep as 1,000 meters in search of squid to eat. Image has been shot in Dominica, Caribbean Sea, Atlantic Ocean. Photo taken under permit n°RP 16-02/32 FIS-5.

Sub-adult sperm whale try to move away a calf to to mate with a female, (Physeter macrocephalus), Vulnerable (IUCN), The sperm whale is the largest of the toothed whales. Sperm whales are known to dive as deep as 1,000 meters in search of squid to eat. Image has been shot in Dominica, Caribbean Sea, Atlantic Ocean. Photo taken under permit n°RP 16-02/32 FIS-5.