Underneath their gill slits there are blood vessels which intake oxygen from the water; some sharks keep their mouths open to breathe so it’s easier for the water to pass over the gills. Most sharks don’t have strong neck muscles so the water doesn’t easily pass over their gills, that is why they have to keep moving with their mouths open to breathe. Some sharks, which have strong neck muscles, push the water over their gills so the shark can stay at rest and still breathe. Other sharks have tiny holes over their eyes, which the water is pulled into so the shark can breathe with its mouth closed. A sharks diet is very interesting.
A well known example of this is the infamous anglerfish (Lophiiformes). Anglerfish posess a modified dorsal fin, the illiceum, at the tip of which is a bulb, the esca, which contains symbiotic luminescent bacteria. This esca is used both as a light to guide the fish, but also to lure prey to the anglerfish’s mouth. (Munk, 1998). The Cookiecutter shark’s bioluminescent cells imitate the faint light of the surface above, camouflaging it when viewed from below and so allowing it to approach its prey without being seen.
They are unlikely to dive deeply unless they are hunting and otherwise tend to stay near the surface. This nutrient cycling by marine mammals is known as the whale pump and can be thought of as an opposite-direction biological pump, which removes nutrients from the euphotic zone via sinking nutrients. It has been suggested that mammal fecal plumes are analogous to upwelling in terms of nutrient cycling. It is important to note that tough this process is termed the “whale pump” it is not limited to whales but includes all marine mammals and sea birds. The whale pump allows for an increase in the primary productivity in
Do you know why scientists study animal eating behaviors? In this essay you will learn why and how Scientist study the eating behaviors of hummingbirds and sleeper sharks and what they learned. Scientist study the eating behaviors of hummingbirds and sleeper sharks because Scientists think that they are interesting animals. According to, A New Look at Hummingbirds,”Now we know that the beak also has a special way to open extra wide…”This reveals that he would have to be interested in hummingbirds in order to do research, ask a question and answer it. In the text, The mystery of the Sleeper Shark it states,” A team of Scientist led by Dr. George Benz is working to find out whether the sharks may actually hunt live seals”.This demonstrates
The Great Hammerhead Shark has many physical attributions that make the species unique to other sharks. Perhaps its most well-known anatomical feature, the flat and t-shaped cephalophoil, aids the Great Hammerhead in catching prey. Ampullae of Lorenzini on the hammer-shaped head sense hidden prey, which especially benefits the hunting of stingrays. The variations within the cephalophoils differentiate hammerheads from each other. In addition, wide-set eyes give The Great Hammerhead shark a greater, more enhanced range of sight.
There are many instances where biology is both correctly and incorrectly displayed in the media. Through the use of animation movies mostly, biologists are able to spread awareness of important problems occurring in both the ocean and on land that effect animals and their habitats. The movie A Turtle’s Tale explores the life cycle of sea turtles; from when they are first born and the difficulties they face getting to the ocean to when they lay their own eggs. A Turtle’s Tale shows Sammy, a hatchling who travels the sea in search of his love, which shows how a turtle responds to difficulties in the ocean. This movie also shows how global warming is changing the oceans and affecting the animals that live there.
This indirectly proves that intraspecific feeding competition is important to sperm whales. A positive correlation between successful feeding and whale abundance may be because of the dependent movement for feeding, lingering in areas with plenty of food and leaving areas with no resources quickly. This mobility makes it hard to believe that a member of its species would directly swim in front of another interfering with its feeding. Thus for sperm whales intraspecific competition most likely occurs at the level of resource depletion caused by other sperm whales feeding in the same large general area during the previous
A few animals that have change in order to survive are the bull shark, the igloo viper, poison dart frog, and the red bore, according to “Costa Rica Animals”. “The Bull Shark and its Fresh Out Come” states that the bull shark had the most changes in itself in order to survive, the bull shark changed itself so it can breathe in salt and freshwater. This a huge change “according to “Freshwater biologist Smith Angel”(Costa rica and its changing habitat) says freshwater biologist Smith Angel. Because the bull shark change its lungs and cells in order to breathe oxygen from both fresh and saltwater. The Bull shark will most often go into freshwater or a river in to breed and raise its pups, “The Bull Shark will going into Fresh water only for breeding, which includes raising its pups witch is down by the mother” (Costa rica and its changing habitat) says freshwater biologist Smith Angel.
Keeping some crickets in his habitat is a good way to keep him busy pouncing around on those creatures. Although bearded dragons are nice creatures, a top to his case will be very necessary because they can climb. And for everyone to be safe, he needs to stay in his home. Bearded dragons are cool and quiet animals to show and teach your kids about because they are omnivores, you can let them see how some animals eat both plants and animals. Bearded dragons would be a good class pet because they are easily cared for, but are super interesting and unique pet to show your kids.
They have well-developed and symmetrical gills over which drawn water flows. The flow of water carries the waste and reproductive products. Movement: Although abalones occur in the same place, they may use their muscular foot with its suction power to move, cling and stay tight with the substrate surfaces. Feeding habits: In nature, abalone eats marine algae with a particular preference to large brown algae such as giant kelp and other kelp species. While juvenile abalone grazes for algae, diatoms and bacterial films, adults rely on drift algae, and if food becomes scares, they move after their food.
To protect the Mako Shark species, they are protected by U.S. waters(Beardsley, 2015). Mako sharks are fascinating animals. They have long, slim bodies to enable them to swim at fast speeds. Makos live all around the world in central oceans. They have special adaptations they use to help them survive.
The colors that the Stingray embody allow them to bury themselves in the surface of the sand and move without being detected. The skin of the Common Stingray compose of scales called “Dermal Denticles”. These V-shaped scales give off the slippery feel of Stingrays decreasing drag and turbulence when gliding through water. Similarly to Sharks, this feature of their skin allows them to be stealthy hunters swimming faster and quieter. The only difference between the two is that sharks have more aligned dermal dencticles pointing towards the back of their body while stingrays have their scales much more spread apart with irregular patterns.
I have swum with Caribbean reef sharks in the Bahamas and have seen how beautiful and strong they truly are first hand. Sharks are a vital part to every ecosystem they are in and currently being killed at a rate that they cannot reproduce at. Alpha predators are a necessary component of eco-systems because they keep the populations of every trophic level below them in check. You can compare an eco-system to a skyscraper; you need every single part so the entire building does not fall apart. Sharks have the task of killing the wounded, old, and sick fish in schools to keep the stocks of fish healthy and plentiful.
The third layer of the ocean that the beluga falls through is called the Bathypelagic Zone also known as the "Midnight Zone". There is very few animals that would be able to eat what is left of the beluga whale but the nutrients still gets to them and it makes the water rich. Many creatures down here must survive of carcasses nutrients that falls from he surface and that is why it 's not a bad thing when beluga whales die from natural things. The fourth layer of ocean that the nutrients pas through is the Abyssopelagic Zone or other wise know as the "Abyssal Plain". Many physical parts of the beluga are gone but yet the nutrients are still falling down and its giving animals down there a rich environment to
The Florida rig is an advancement over the toothpick-pegging method, Florida rig sinkers are molded around a thin Teflon tube, and a corkscrew wire that screws into the nose of a soft bait. Slip the sinker on the main line, tie the hook directly to the main line, and screw it into the bait. This provides the ultimate bait for a weedless and snagless presentation for big bass in heavy cover (Chen). One bait that is great for really dense weeds under the water is this rig because it seems to glide right through the weeds and not snagging anything which can be a huge advantage to the fisherman for getting in right in close with the bass. The Florida and Carolina rig both use soft baits, but the Lipless Crankbait is quite a bit different than those