Great White sharks eat fish, and as they grow start to eat seals and walrus. Tiger sharks will eat anything and everything, such as dead animals, coal, tires, and clothes. Shark habitats are found in seas and oceans all over the world. Bull sharks have been seen swimming in lakes and rivers. Sharks prefer to live in warm waters near the coast.
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.
Rene Ismail McKenna - C 9th Grade Biology PBA American Lobster - Homarus americanus Ecosystem/Ecology of Homarus americanus Adult American lobsters tend to dwell in depths of below 50 meters. However, some can live at depths of about 750 meters. They can weigh up to 44 pounds and reach a length of about 25 inches, however they are typically around 2 feet long and weigh 3 pounds. The American lobster’s preferable habitat is on rocky surfaces covered with algae, because algae attract animals that the lobsters prey on. This habitat allows the lobster to hide within the cracks, where it can hide from predators in its environment such as flounder, cod, crabs and eels.
885 wahoo’s were examined and 53% of the wahoo had food containing primarily pelagic fish and squid. The most occurring food was frigate mackerel (Auxis thazard), porcupinefish (Diodon hystrix), and the flyingfish (Cypselurus spp.) (Manooch, 1983). They have also been recorded feeding on tunas, little tunny, dolphinfish, herrings, jacks, lanternfishes, scads, and pilchards. Even though wahoo is attracted traveling closely to floating debris or plants, such as sargassum spp., their diet makes them go out into the open waters and find food there.
For instance, in the scientific article it states, “Somehow the worms drill into the bones and extract the stored nutrients”. Basically this is saying that the worms go into the whale bones and eat the stored nutrients. From this we can infer that the worms have no body parts for physically drilling into the strong material. For instance, in the text it states, “A zombie worm attaches to a whalebone with special root like structures”. Basically this is saying that it
Some octopuses also use ink to confuse a prey (especially big ones, like lobsters) before attacking it from behind. Changing color/shape: Many cephalopods are able to change their color and shape. Through controlling single pigment cells, cephalopods are capable of making different patterns and colors. For example, ready-to mate squids express their readiness through expressing certain colors. The change of color and shape are also used to camouflage animals when hiding from enemies or ambushing prey.
Important tapeworm parasites of humans Cestoda is a class of phylum platyhyelminthes. The best-known species of this class are called tapeworms. This is a class of parasitic flatworms, their life histories are vary but they mostly live in the digestive tracts or gut of humans and other vertebrates as adult, and sometimes they are present in the bodies of animals as juveniles. All cestodes contain atleast one and often more than one host. They lack digestive tract, mouth and senory organs, they have unique body extension called microtiches which help in absorption of host nutrients.
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.
In modern nature, venomous mammals are rare, with only tree orders of the class Mammalia that produce venom; these are Euripotyphla (moles, shrews, hedgehogs), Chiroptera (bats) and Monotremata (our modern Platypus). Their sting is excruciatingly painful, causing rapid swelling to the affected area. Although not lethal to humans, their blow can be fatal to smaller animals such as dogs. Studies on venomous snakes conclude that poison production is due to the result of evolution. According to national geographic, the same genes that appear in the modern Platypus DNA were modified in a separate process to snakes, suggesting that they might not have the same origin of evolution.
Water mites and water fleas etc. live among the stones and gravel in the shady part of the pond. These small invertebrates feed on algae. Sticklebacks enjoy the shade provided by the lily pads and feed on algae and small invertebrates. Twenty common newts feed in the pond.