Showing posts with label Chordata. Show all posts
Showing posts with label Chordata. Show all posts

Sunday, April 5, 2009

Frogfish



Frogfish are some of the most bizarre looking fish in the ocean. They are a type of angler fish with amazing adaptations for camouflage. Their bodies are oddly shaped and they can change colors to blend in with their environment. Most frogfish mimic corals, sponges, seaweed, or rocks. This camouflage keeps predators from identifying them as food, and it keeps their food from identifying them as predators.


Frogfish spend most of their lives scooting along the bottom of the ocean. They lie motionless, resting on specially modified fins that act almost like legs.

Like most angler fish, frogfish have a very clever method of hunting prey. Instead of going out to find their food, they bring their food to them. Frogfish have a small growth on their heads that looks like a small worm or fish. They dangle this lure in front of their mouth, tricking other fish into thinking it is food.


The fish come close, thinking they will eat an easy meal. Instead they become the meal for the frogfish.


Frogfish are found in oceans throughout the world, and they take on a staggering variety of shapes and colors.


Monday, February 16, 2009

Sea Snakes

Sea Snakes are some of the many land animals that have adapted to live in the ocean. They seem completely out of place, yet these unusual marine reptiles are perfectly adapted for life below the waves. I'm sure it is hard to picture a snake under water, so I posted the video below of a sea snake gliding across a reef. It seems just as natural swimming underwater as it would slithering on dry land.



There are over 60 different species of sea snakes found in tropical seas throughout the world. Most are brightly colored, and nearly all sea snakes have a flattened tail that works as a paddle. Unlike their terrestrial cousins, many species of sea snakes lack the ability to crawl on land. Others are known to spend a good amount of time out of the water. Sea snakes may live underwater for most of their lives, but they still breathe air like all other reptiles.

The forked tongue of a sea snake is specially adapted to allow them to smell underwater. They cruise along coral reefs hunting fish, eels, shrimp, or even fish eggs depending on the species.

Most sea snakes are highly venomous and pack deadly poison, but few are known to be aggressive towards humans. Attacks are not very frequent, and they rarely deliver much poison when they strike. When sea snakes are handled by humans or caught on land, they can be very dangerous. As with most sea creatures, it is best to look but don't touch.

Friday, October 17, 2008

Great White Sharks

Great White sharks are among the fiercest and most deadly predators in the world. They are among the few species of sharks that have a reputation as man-eaters. They are some of the most efficient and powerful predators in the world. Here is some breathtaking video footage of great white shark attacks from the series "Planet Earth".

[WARNING: Not safe for small children or people who love seals]

Monday, September 22, 2008

Fish

When you think of creatures in the ocean, Fish are probably the first thing that comes to mind. Fish are some of the most populous and successful organisms in the ocean. They are fast, big, and perfectly suited for life in the sea. They are members of the phylum Chordata, meaning they have a backbone and spinal cord. Fish eat anything from algae and plankton to huge marine mammals.

Fish are some of the most diverse and populous organisms on our planet. Fish range in size from tiny fish we can barely see with our naked eye, to the giant whale shark, which dwarfs humans. Fish are spread throughout the oceans of our world and can be found in all seas except the Dead Sea (which is too salty to support any life). Fish can live anywhere from the hot tropical seas to the frigid arctic ocean. Fish have been found from the shallows of tide pools to the deepest reaches of the ocean humans have been able to explore.

I will cover some of the most beautiful, exotic, and bizarre species of fish over the course of this blog. Keep checking for more updates.