The first 3 pairs of walking legs are chelate that in addition to its walking function, they help the animals to catch their food as well as in offending and defending. The two rounded, reddish-brown uropods are connected to the paddle-like telson. Together, the uropods and telson form a fan-shaped tail. The shrimp locomotion is performed by the telson and uropods.
They possess blunt heads with tricuspid teeth that are flattened laterally, enable them to graze on marine algae (Darwin, 1839). Besides, long and sharp claws with a powerful ability to grip onto the lava (Carpenter, 1966).Their tails are flattened compared with others iguanids and they successfully adapted for efficient swimming (Tracy and Christian, 1985).Black coloration and circulatory heat shunts help to maintain preferred body temperature during foraging bouts in the cold sea water. Genetic stress in marine iguana occurs when there is endocrine-immune interactions across species which make it difficult to discern consistent patterns. Relationship between baseline and stress –induced levels of sex and adrenal steroid hormones and standard Eco immunological metrics in both female and male Galapagos marine iguanas. A significant association between adrenal activity and immunity is found, whereby greater corticosterone responses to stress had lower basal and stress-induced immunity for example bactericidal
A dorsal fin is a unique structure to each whale, much like a fingerprint, a scientist who has followed a pod can tell the different orcas apart easily. Observing orcas in their natural settings, taking picture of their dorsals are all ways to document growth and social structure. A professional in the field can look at a photograph or animal in the distance and be able to know the approximate size of the animal. Scientists who follow orca pods are able to determine who the leader is, monitor growth of the pod members and see the social structure within the pod. The things SeaWorld says we've learned from orcas in captivity, we can also learn from orcas in the wild.
Humankind has been familiar to zombie apocalypse scenarios for decades and probably centuries, but has neglected the actual possibility of one happening. In our surroundings, however, creatures are turned into will-less victims by extraordinary parasites and fungi. These take over their hosts’ bodies, and get them to commit actions unlikely for the species affected and use them as servants. Is it possible for these parasites and fungi to evolve and start affecting humans? One of the parasites responsible for action controlling a certain type of snails is the flatworm Leucochloridium Paradoxum.
It may worth mentioning that weedy seadragons are easily injured during handling. Feeding habits and predation: Seadragons feed mainly on tiny crustaceans such as mysids and sea lice. Their snouts are equipped with special muscles which enable widening the snout and hence capturing different sizes of food and passing it into their toothless
Zombie Worms Drill Whales Bones with Acid, science article by Martha Ennis, and Trip into Blackness, field notes by marine biologist Mariana trench, present the chemical adaptations that allow worms and jellyfish to also survive in extreme environments. The adaptations that each of these organisms represents is what make them so unique. Deep-sea creatures depend on chemistry to survive develop defense or survival mechanisms. According to Martha Ennis, “Skin cells of these structures [zombie worm’s root-like structures] produce an acid, which dissolves the bone, allowing the worm to extract the nutrients.” This chemical function allows zombie worms to acquire food without being dependent on other
Alina Swanson Period 2 Mrs. Broad September 30, 2016 Isopod Lab Introduction: This lab is used to see if and how many of the Isopods like the light or the dark. Isopods also known as pill-bugs, roll into a ball when felt threatened. Isopods are very similar in body types as lobster, crabs, and shrimp. They all have compound eyes and antennae, but still sometimes do not always look alike.
"Strayed Crab" Analysis Elizabeth Bishop 's "Strayed Crab" is a poem about a small and fearless crab that is trying to assert its power and dominance over its environment. It fits into this collection because it focuses specifically on the theme of nature by providing details about the crab and the other organisms in its vicinity. This poem is also included in this collection because it gives a unique perspective on the events that occur within Elizabeth Bishop 's "Giant Toad" and "Giant Snail". In particular, this poem catches my attention due to the narcissistic persona of the crab and how it uses a condescending tone when speaking about all of the other organisms besides the snail. While this poem is free verse, the speaker uses an
Horseshoe crabs are marine living fossils, probably traced back to 485 million years ago. There are two horseshoe crab species found in Hong Kong. Horseshoe crabs are an ancient marine chelicerates, identified as the Class Merostomata, Order Xiphosura. The animals are identified by the possession of appendages around their ventral mouth and their swimming legs at their distal end.
Fly Fishing for Carp :: Fishing There was a time when fishing for carp in the US was unheard of. However, the growth in popularity of the sport in recent years has meant that more and more people, when fly fishing, are accidentally catching these large fish. Whether you’ve done so accidentally and want to know more, or if the idea of fly fishing for forty pound monster fish is just something that sounds cool to you (and it is!), then read on for some more tips on how it’s done:Sight Casting Like bonefish, you can often spot carp tailing in shallow water. Also like bonefish, carp is greedy critters, which will try to snack on anything that happens to appear in their line of sight. If this is the case when you go fly fishing for carp, you will want to try sight casting.
I enjoyed reading the essay “Consider the Lobster by David foster Wallace, I also enjoyed the writing style of the author; the way he would insert his own opinions, thoughts and clarification in the text as well as being informative about the whole Lobster situation. Reading this essay has given me some insight on the issues that I don’t really tend to think about. I understand the points that the author made about the ethics behind boiling a lobster alive for our own “enjoyment” as well as the fact that we slaughter countless animals for us to consume without thinking about how it was done. Today not many people witness animal slaughters, most of it is done in slaughter houses away from the populous. It is then packaged and shipped to the
Small buds appeared and genes like sonic hedgehog shaped them into fins. Over millions of year’s fins evolved into a myriad of forms… as millions of years past, more variations. From clawed limbs of reptiles… to the powerful arms of primates that could traverse through the trees, until eventually a remarkable piece of anatomy arose that would itself transform the world. The human hand. This history is not just in our bones, flesh and muscle it’s in our DNA and that’s what connects us to our inner fish” (Shubin, Your Inner Fish,
The cuttlefish is an amazing marine animal, one of the most intelligent invertebrates. It is not actually a fish though, it is in the category sepiida. There are over 130 different species of cuttlefish. This mollusc has a very large brain and a very unique eye. It has 8 arms and 2 tentacles that have suckers on them so they can grab their prey.