Eric Baccega / Caribbean manatee or West Indian manatee (Trichechus manatus) mother with baby, age two days, captive, Beauval Zoo, France

Eric Baccega / Caribbean manatee or West Indian manatee (Trichechus manatus) mother with baby, age two days, captive, Beauval Zoo, France

Eric Baccega / Caribbean manatee or West Indian manatee (Trichechus manatus) mother with baby, age two days, captive, Beauval Zoo, France

Eric Baccega / Caribbean manatee or West Indian manatee (Trichechus manatus) mother with baby, age two days, captive, Beauval Zoo, France

Eric Baccega / Caribbean manatee or West Indian manatee (Trichechus manatus) mother with baby, age two days, captive, Beauval Zoo, France

Alex Mustard / Young Florida manatee (Trichechus manatus latirostrus) portrait, Three Sisters Spring, Crystal River, Florida, USA. February 2010

Alex Mustard / Florida manatee (Trichechus manatus latirostrus) being cleaned by blue gill sunfish (Lepomis macrochirus). Three Sisters Spring, Crystal River, Florida. USA. February 2010

Alex Mustard / RF- Florida manatee (Trichechus manatus latirostrus) portrait in Three Sisters Spring. Crystal River, Florida, USA. February 2010. (This image may be licensed either as rights managed or royalty free....

Alex Mustard / A adult Florida manatee (Trichechus manatus latirostrus) stays warm in a freshwater spring in winter. Three Sisters Spring, Crystal River, Florida. USA. February 2010

Alex Mustard / A Florida manatee (Trichechus manatus latirostrus) head portrait in Three Sisters Spring. Crystal River, Florida, USA. February 2010

Alex Mustard / A group of Florida manatees (Trichechus manatus latirostrus) sleeping in the afternoon at Three Sisters Spring. Crystal River, Florida, USA. Manatees sleep on the bottom of the spring, floating up per...

Alex Mustard / A group of Florida manatees (Trichechus manatus latirostrus) sleeping in the afternoon at Three Sisters Spring. Manatees sleep on the bottom of this shallow spring, occasionally rising to the surface...

Alex Mustard / A Florida manatee (Trichechus manatus latirostrus) close up head /nostrils portrait in Three Sisters Spring. Crystal River, Florida, USA. February 2010

Alex Mustard / Two Florida manatee (Trichechus manatus latirostrus) surfacing to breathe, in morning light. Three Sisters Spring, Crystal River, Florida. USA. January

Alex Mustard / Bluegill sunfish (Lepomis macrochirus) sheltering beneath a Florida manatee (Trichechus manatus latirostrus). Crystal River, Florida, USA.

Alex Mustard / Young Florida manatee (Trichechus manatus latirostrus) stays warm in a freshwater spring in winter, at dawn. Three Sisters Spring, Crystal River, Florida, USA. January

Alex Mustard / Florida manatee (Trichechus manatus latirostrus) swimming under trees in Three Sisters Spring, Crystal River, Florida, USA. January

David Fleetham / Florida manatee (Trichechus manatus latirostris) at Three Sisters Spring in Crystal River, Florida, USA.

David Fleetham / Florida Manatee (Trichechus manatus latirostris), Three Sisters Spring, Crystal River, Florida, USA. National Wildlife Federation Photo Contest Grand Prize WINNER 2010.

Juergen Freund / West Indian manatee (Trichechus manatus), released after being hit by power boat. Florida, USA

Norbert Wu / West Indian Manatee (Trichechus manatus), Crystal River, Florida

Chris Newbert / West Indian Manatee (Trichechus manatus) floating at water surface, Florida

Chris Newbert / West Indian Manatee (Trichechus manatus) underwater, Florida

Tim Fitzharris / West Indian Manatee (Trichechus manatus) group, North America

Tim Fitzharris / West Indian Manatee (Trichechus manatus) mother and calf, Crystal River, Florida

Luciano Candisani / Antillean Manatee (Trichechus manatus manatus) in coastal shallow waters, Brazil

Fred Bavendam / West Indian Manatee (Trichechus manatus) named Sadie has propeller cuts on the tail, but her calf remains intact, every year boats kill dozens of manatees, Kings Bay, Crystal River, Florida

Fred Bavendam / West Indian Manatee (Trichechus manatus) mother and calf nuzzling, Kings Bay, Crystal River, Florida

Fred Bavendam / West Indian Manatee (Trichechus manatus) eating Hydrilla (Hydrilla sp) an introduced plant that often clogs waterways, Blue Spring State Park, Florida

David Fleetham / Florida Manatees (Trichechus manatus latirostris), gather at Three Sisters Spring in Crystal River, Florida, USA. Endangered.

David Fleetham / Florida manatee (Trichechus manatus latirostris) with Bluegill sunfish (Lepomis macrochirus) shoal, one fish eye to eye with manatee, Three Sisters Spring, Crystal River, Florida, USA.

David Fleetham / Florida manatees (Trichechus manatus latirostris) subspecies of the West Indian manatee, large group gather at Three Sisters Spring, Crystal River, Florida, USA.

Shane Gross / Florida manatee (Trichechus manatus latirostris) underwater, Homosassa Springs, Florida, USA. January.

Shane Gross / Florida manatee {Trichechus manatus latirostris} Homosassa Springs, Florida, USA.

Shane Gross / Manatee (Trichechus manatus latirostrus) female and calf close to surface in a marina with boats in background, The Bahamas.

Shane Gross / Manatee (Trichechus manatus latirostrus) feeding on turtle grass (Thalassia testudinum) and manatee grass (Syringodium filiforme) in the shallows of Eleuthera, Bahamas.

David Fleetham / Florida manatee (Trichechus manatus latirostris), four resting on sandy river bed. Split level image. Three Sisters Spring, Crystal River, Florida, USA.

David Fleetham / Florida manatee (Trichechus manatus latirostris), mother and calf on sandy river bed amongst fish. Three Sisters Spring, Crystal River, Florida, USA.

Alex Mustard / Young Florida manatee (Trichechus manatus latirostris) plays with a snorkeller. Three Sisters Spring, Crystal River, Florida, USA.

Alex Mustard / Florida manatee (Trichechus manatus latirostrus) with Blue gill sunfish (Lepomis macrochirus) cleaning it, in a freshwater spring, beneath trees. Three Sisters Spring, Crystal River, Florida, USA

Alex Mustard / Florida manatees (Trichechus manatus latirostris) females feeding on vegetation that has fallen into the water, while their babies play. Three Sisters Spring, Crystal River, Florida, USA

Alex Mustard / Florida manatee (Trichechus manatus latirostris) baby suckling from its mother. Three Sisters Spring, Crystal River, Florida, USA

Alex Mustard / Snorkeller rubbing the belly of a baby Florida manatee (Trichechus manatus latirostris). Three Sisters Spring, Crystal River, Florida, USA

Alex Mustard / Florida manatee (Trichechus manatus latirostris) suckling milk from mother. Three Sisters Spring, Crystal River, Florida, USA

Alex Mustard / Long exposure of a Florida manatee (Trichechus manatus latirostris) breathing at the surface, split level with trees. Three Sisters Spring, Crystal River, Florida, USA

Ashley Cooper / A sign about Manatees in Miami Beach, Florida, USA. October 2015

Michel Roggo / West Indian Manatee (Trichechus manatus) rear view in Florida springs during winter, Homosassa Springs Wildlife Park, Florida, USA. March 2011. Photographed for The Freshwater Project Captive

Michel Roggo / West Indian Manatee (Trichechus manatus) in freshwater of Florida springs during winter. River National Wildlife Refuge, Crystal River, Florida, USA. March 2011. Photographed for The Freshwater Projec...