Animating the Sea: Motion, Light and Eyes

Faculty: Ruth Hayes, M.F.A., and Pauline Yu, Ph.D.


Swimming Behaviors

Undulatory swimming is a type of locomotion that requires muscular paddles, fins, and tails to propel the organism forward. Multicellular structures coordinate muscle movements directed by neural stimuli and streamlined body shapes. The Yellow-bellied sea snakes have oar-like tail with no belly scales and the banded sea krait has allover scales and a paddle-like tail. Common Cuttlefish fins are stabilizers that can move the cuttlefish at slower speeds, provide extra thrust, and allows it to hover. The movement is done through a rhythmic undulatory pattern.

Oscillatory swimming is the movement of pectoral-fin-based swimming. Phocid seals use oscillatory swimming to move throughout the water column. Harbor seals use their fore flippers passively, and propel themselves with their lower region, using pelvic oscillation to move their hind flippers separately but coordinately. At times, the hind flippers deliver power strokes for an extra boost. Sea lions are adapted for movement on land as well as in the water. Wing like front flippers have bone structure similar to those in our arms and hands. hands. Though they have the same structure these bones do not have the same function as the act passively instead of actively. Swimming with these flippers propels the sea lion forward, while the hind flippers steer. Both sets of flippers enable a sea lion to walk on land.

Common Cuttlefish Sepia officinalis

Zoe Gregorio The Common Cuttlefish (Sepia Officinalis) is a part of the class Cephalopoda, order Mollusca making it a Cephalopoda Mollusca.[1]. The class Cephalopods are considered to be a part of the order Mollusks, so they have the same general… Continue Reading →

Harbor Seal (Phoca vitulina)

✦ By L.C. ✦          The harbor seal’s scientific name is  phoca vitulina, which means “calf-like seal”, this most likely being due to their neotenic appearance; namely, they have huge eyes for seeing in the dark, and… Continue Reading →

Octopus Light Sensing Apparatus

By Mary Paiten Madsen There are several key things that are fascinating about how octopuses see the world. Their eyes do not have corneas, relying on other features to protect and hold the iris in place. Despite being notorious for… Continue Reading →

Otariid and Phocid locomotion

            Living in the pacific northwest it is not uncommon to see a Harbor Seal (phoca vitulina) or California Sea Lion (zalophus californiaus) at some point in a residents life. However, it is just as common for these two to… Continue Reading →

Short-beaked Common Dolphin (Delphinus delphis)

By: Matthew Price The short-beaked common dolphins are known by their scientific name as Delphinus delphis. Their taxonomic classifications are the kingdom Animalia, phylum Chordata, class Mammalia, order Cetacea, family Delphinidae, genus Delphinus, and species Delphis.  This particular breed of common… Continue Reading →

Swimming Movements of the Great White Shark (Carcharodon carcharias)

By Daye Glisson The Great White Shark (Carcharodon carcharias) is considered one of the top predatory fish in the ocean.  They can grow to lengths of up to 6.5m and weigh as much as 2250kg.  White sharks are primarily found in the cooler… Continue Reading →

The White Shark and How it Hunts (Carcharodon carcharius)

Per Kohlstaedt The White Shark, better known as The Great White Shark, is one of the top predators of the ocean and is essential to keeping the balance of marine life. It is the largest predatory fish in the sea… Continue Reading →

Yellow-bellied Sea Snake (Pelamis platurus) & Banded Sea Krait (Laticauda colubrina)

By Ashley Scott Introduction This paper is going to discuss habitat and life differences between the yellow-bellied sea snake and the banded sea krait. These two species are types of marine aquatic snakes that live in warmer waters, mostly in… Continue Reading →

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