See-Through Animal Photos, Translucent Creatures Wallpapers, Download, Photos -- National Geographic

Juvenile Cowfish
Photograph by Chris Newbert, Minden Pictures
A photographer's strobe gives a violet sheen to this translucent juvenile roundbelly cowfish off the coast of Kona, Hawaii. Also known as the transparent boxfish, the roundbelly cowfish has two short horns in front of its eyes.
Pelagic Octopus
Photograph by Chris Newbert, Minden Pictures
A pelagic, or open-ocean, octopus gives off a neon glow in Hawaii. Most species of octopus have no internal skeleton, unlike other cephalopods.
Hydromedusa in Antarctica
Photograph by Ingo Arndt, Minden Pictures
A hydromedusa spreads its luminescent tentacles in the Weddell Sea near Antarctica.
Sea Butterfly Snail
Photograph by Ingo Arndt, Minden Pictures
Tiny marine snails known as sea butterflies take many forms, including heart-shaped, such as this species in Antarctica's Weddell Sea.
Squid
Photograph by Chris Newbert, Minden Pictures
A nearly translucent squid glows in reds and purples. There are nearly 300 different species of squid, found in oceans worldwide.
Bristleworm
Photograph by Ingo Arndt, Minden Pictures
A close-up of a bristleworm's head in Antarctica's Weddell Sea shows the tiny predator's trumpet-shaped mouth.
Zooplankton
Photograph by Ingo Arndt, Minden Pictures
A copepod, a type of zooplankton, drifts in the Weddell Sea near Antarctica. Copepods are microscopic relatives of shrimp and lobsters
Comb Jelly
Photograph by Ingo Arndt, Minden Pictures
Darkness in Antarctica's Weddell Sea gives this comb jelly a chance to show off its candy-colored bioluminescent cells.
Antarctic Krill
Photograph by Ingo Arndt, Minden Pictures
Antarctic krill, such as this specimen in the Weddell Sea with a stomach full of yellow algae, are a critical link in the ocean food web.
Jelly Larva
Photograph by Ingo Arndt, Minden Pictures
The flower-shaped larva of a scyphomedusa jelly drifts in Antarctica's Weddell Sea.
Larval Leaf Scorpionfish
Photograph by Chris Newbert, Minden Pictures
Lacking any other defense, many larval fish have adapted transparency as a method of camouflage—such as this tiny, see-through larval leaf scorpionfish in Hawaii.
Jellyfish, Antarctica
Photograph by Ingo Arndt, Minden Pictures
A tiny jellyfish, with tentacles folded and its orange central mass visible through its transparent body, drifts in the waters of Antarctica's Weddell Sea.
Larval Shrimp and Jellyfish
Photograph by Chris Newbert, Minden Pictures
A transparent larval shrimp piggybacks on an equally see-through jellyfish in the waters around Hawaii.
Squid, Papua New Guinea
Photograph by Chris Newbert, Minden Pictures
An opalescent squid uses its giant eyes to navigate the nighttime waters around Papua New Guinea.
Larval Flounder
Photograph by Chris Newbert, Minden Pictures
Flounder in their larval stage, such as this one in Hawaii, resemble ghostly undersize replicas of adults.

Explorer Moment: Naming Baby Parrots

While studying green-rumped parrotlets, Karl Berg discovered the adults appear to "name" their young.
Survival Guide: Dodging Locusts

Swarm behaviorist Iain Couzin has a toxic reaction to a locust at the same time his team runs out of food.