Hippocampus: Sea Horse

The evolutionary path of a whale is a fascinating process of a terrestrial mammal that evolves into a marine mammal. This evolutionary path started with one of the earliest ancestors called “Pakicetus”. A Pakicetus was discovered to be a land animal with four legs that had teeth as carnivores. It skull structure was long, but this organism didn’t look like any marine animal. The scientist then discovered that on the skull’s ear region it was surrounded by a bony wall. This feature on an organism only was distinct from one type of species, scientist discovered that this animal “Pakicetus” was an ancestor of a whale. By comparing the early whales Pakicetus to the next generation of ancestors Ambulocetus, the Ambulocetus whale looks more like

The ear bone serves as more than a 2 inch bone but the eternal soul of a whale and the way it persists its life inside the gray sea. The ear bone is so small that “our

For people in Texas they get excited for rodeos or a Cowboys football game but, down in Louisiana on Bourbon St they have a 2 week span party called Mardi Gras. From Shrove Tuesday all the way to a day before Ash Wednesday. Each night has a small parade until the last 5-7 days this is when the big parades are. Social clubs like the Krews organize Mardi Gras. Girls who go can win prizes like get thrown mardi gras necklaces from the boys above. For the men their is only one big prize called The REX .

Loss means to lose something. Someone could lose their keys or wallet, or they could lose something very close to themselves. In the book, A Place Where the Sea Remember, Marta and Caesar has to deal with loss. I will talk about what Marta and Caesar looses that so close to them.

Some ways in which sea horses have adapted to better survive in their habitats. One of their abilities that can help them survive is their ability to camouflage and hide from their predators. The second thing is that they don’t have scales they have bony plates. The final thing is that they have special senses.

Did you know that seahorses are the only members of the Hippocampus species? The name Hippocampus is Greek, it means “Horse Sea Monster.” There are thirty-four different species of seahorses. Many people are surprised when they find out that seahorses are a type of fish. They have fins and gills, the defining features of a fish. When seahorses are in a group they are called a herd, just like horses. Seahorses usually live one to five years, but they are becoming endangered because their habitat is slowly being destroyed. “Seahorses can be as small as one inch long and as tall as twelve inches long!”(Trisha Shaskan, page 23) Seahorses are not alone though, the Syngnathidae family also includes pipefish and seadragons. Syngnathidae means fused jaw.

The ocean is a very beautiful place. It consist of various different types of creatures and plants. 70% of the earth is made up of the ocean, with an average depth of 12, 400 ft. We have only explored less than 5% of the ocean. The ocean has a 17 °C (62.6* F) temperature, and has a latitude of 14.5994 °s and longitude of 28.6731 °w. The deepest part of the ocean is the Mariana Trench, which is about 36,000 ft. Photons (light) can’t go more than 330 ft below the water’s surface. 94% of life on Earth is aquatic, one living in a pond or aquarium. All the creatures of the sea must survive harsh conditions, predators, lack of oxygen, too much pressure, scares food, lack of sunlight, and extremely cold parts of the ocean. Certain types of plants,

Accumulating evidence has shown that age-related episodic memory differences are closely associated with the development of hippocampal subregions. In particular, area CA1 is believed to play a significant role in the encoding of related experience. Prior work has pointed out that memory integration occurs during the encoding of two related events. Previous studies have also suggested that the developmental changes in CA1 volume are related to the improvement in associative inference from childhood to adulthood. However, it remains an open question whether contextual information of two related episodes will influence memory integration and the ability to make associative inference. Also, little is known about whether this impact changes

A seahorse is a fish that lives under water. Seahorses prey on plankton and shrimp. Seahorse’s predators are penguins and stingrays. Seahorses are fish although they are bad swimmers. They are also very small. The male seahorse is equipped with a pouch on the ventral or front-facing, side of the tail and this is why seahorses are called seahorses. Seahorses are mainly found in shallow tropical and temperate waters throughout the world. From about 45 degrees south to 45 degrees north and live in sheltered areas such sea grass beds, estuaries, coral reefs, or mangroves. Four species are found in pacific water from North America to South America. These areas are seahorse’s habitat. When the fry, or baby seahorse, are ready to be born, the male

Last that I wrote about the topic of abortion, I talked about Donald Trump being elected as president and how he must be held accountable for the promises he made and the actions he will take. Since his election laws are being put in place everywhere, because of the election these laws are much easier to set.

The hippocampus has been known to be the storage center for learning and memory in the brain (Wirsching et al., 1984). The mapping theory developed by O’Keefe and Nadel (1978) and O’Keefe and Conway (1980) proposed that there is a relationship between the hippocampus and storing spatial information, which allows animals to map out the surrounding area and locate itself in proportion to its surroundings.

The OED defines multitasking as dealing with more than one task at the same time. The brain, in order to multitask, must receive both actions being performed, and dilute the information before processing. In order to read and listen to something at the same time, for an example, the brain must take the information being read by the eyes and the pulses coming from the ears, and reduce the frequency to keep both tasks going efficiently.

Early investigations of the role of the hippocampus in social memory involved lesions to the brain areas that project to and from the hippocampus. One of such areas is medial septum, which has strong reciprocal projections to and from hippocampal formation (McNaughton & Miller 1984; Alonso & Köhler 1984; Chandler & Crutcher 1983). It has been shown that vincristine-induced lesions to the medial septum impairs social memory (Terranova et al. 1994; Fournier et al. 1993). Similarly, transection of the fimbria, which carries multiple projections to and from the hippocampus (Wyss et al. 1980; Cassel et al. 1997) also impairs social recognition memory (Maaswinkel et al. 1996). (but see also Petrulis et al. 2000)

Ankle bones and tarsal [foot] bones are the most diagnostic elements of the artiodactyls (Gingerich et al., 2), meaning that these bones are the most telling bones when distinguishing what group of animals a fossil may have come from. The presence of these two types of bones together in Gingerich’s discovery suggests that this primitive whale indeed could have been related to the hippopotamus. The skeletons of these animals contain similar bones; therefore both are thought to be artiodactyls. In a recent article in Science, Kenneth D. Rose, of the Johns Hopkins University School of Medicine, says, “While ankles from primitive ancient whales have been discovered before, these are the first that are well-preserved enough to provide clues about whale ancestry” (Braun, 3). Paleontologists strongly believe that the bones of this discovery are all from the same animal. According to Gingerich, “No other mammalian specimens were found in the vicinity; all (fossils) are similar in size, color, and preservation; and no parts are duplicated” (3). Since no other animals were found in this same location, there was no chance that the discovered bones could have mixed with another fossil.

The theme of isolation is highly present in Nathaniel Hawthorne’s “The Scarlet Letter.” Isolation Plays a very important role in the novel. Every main character finds themselves isolated in one way or another, but while some are absolutely and thoroughly destroyed by it, others gain loads of power. Characters Hester Prynne, Chillingworth, and Arthur Dimmesdale are all victims of isolation in the Puritan town of Boston, due to a different reasons such as Adultery, upbringing, and their past.