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ABC: Under the Sea


An Alphabetical List of Sea Creatures


By Kelsey Ciha




  • LS.1.1.1
    • Living things have basic needs, which are met by obtaining materials from the physical environment.
  • LS.1.2.1
    • Living things survive only in environments that meet their needs.
  • RI.1.3
    • Describe the connection between two individuals, events, ideas, or pieces of information in a text.
  • RI.1.4
    • Ask and answer questions to help demonstrate or clarify the meaning of words and phrases in a text.

1st Grade Common Core State Standards:

They originate from South America and are members of the cichlid famly.


Angelfish are triangular in shape and have laterally compressed, or flattened, bodies.

An angelfish is a bright-colored fish of coral reefs.

 Blue whales are among the loudest animals on the planet. They emit a series of pulses, groans, and moans, and it’s thought that, in good conditions, blue whales can hear each other up to 1,000 miles away. 

Their tongues alone can weigh as much as an elephant. Their hearts, as much as an automobile.

Blue Whale

Blue whales are the largest animals ever known to have lived on Earth. 

Corals are so sensitive to climatic change that scientists study coral reef fossils to construct highly detailed chronologies of prehistoric climate patterns.

The average lifespan of coral reeves in the wild range from 2 years to hundreds of years.

Coral Reef

Coral Reeves cover less than one percent of the ocean floor.

Dolphins consume a variety of prey including fish, squid and crustaceans.

Dolphins are well known for their agility and playful behavior, making them a favorite of wildlife watchers.


They use echolocation to find prey and often hunt together by surrounding a school of fish, trapping them and taking turns swimming through the school and catching fish.

Their scientific classification is closer to carp and catfish.


They have long, cylindrical bodies and flattened heads and are generally dark green or grayish on top with yellowish coloring underneath.

The shock of an electric eel has been known to knock a horse off its feet.

Color of the body depends on the habitat. Flounders are usually brown colored with various red, orange, green and blue markings on the body. They can change the color of the body to blend with the colors of the environment in 2 to 8 seconds.

Flounder lives on the ocean floor. It usually inhabits areas near the coral reefs, bridge piles and docks.

Flounder is nocturnal animal (active during the night).


They're the largest predatory fish on Earth. They grow to an average of 15 feet in length, and weighing up to 5,000 pounds.

Great whites can sense even tiny amounts of blood in the water up to 3 miles away.

Great White Shark

They have slate-gray upper bodies to blend in with the rocky coastal sea floor, but get their name from their universally white underbellies. 

Herrings are nocturnal creatures (active during the night). They spend most of the day in deeper parts of the sea, where they are hiding from the predators.

They are an important part of the human diet because it is rich in omega-3 fatty acids and vitamin D. 

Herrings swim in large groups called schools. They can consist of billions of herrings.


Isopods live at the bottom of the ocean floor.

Giant isopods usually eat dead whales, fish, and squid.They may also be active scavengers, and hunt slow-moving prey, such as sea cucumbers and sponges. 


They prefer a muddy or clay substance.

Jellyfish have tiny stinging cells in their tentacles to stun or paralyze their prey before they eat them.


Jellyfish aren't actually fish—they're invertebrates, or animals with no backbones.

Jellyfish digest their food very quickly. They wouldn't be able to float if they had to carry a large, undigested meal around. 

With large black eyes, krill are mostly transparent, although their shells have a bright red tinge.


Krill have a hard exoskeleton, many legs which they use to swim and eat, and a segmented body.

The lifespan of a krill is typically up to 10 years, six years on average. 

Lobsters in the wild can survive up to 100 years. Huge percent of lobsters live much shorter because they end up in the fishing nets much earlier.

Lobsters have excellent sense of smell and touch. They use both senses to detect prey.

Lobsters are ten-legged creatures, just like shrimps and crabs, their closest relatives.


Manatees are gentle, slow-moving water mammals sometimes known as sea cows. 

Manatees live alone or in small groups.


They can stay underwater for as long as 15 minutes, but usually come up every three to four minutes for a breath.

It’s a type of sea slug that is a slime-oozing creature with a boneless body.

Nudibranchs use tentacles on their heads to poke around for grub.


These sea slugs spend their time sliding on their bellies around their habitat in search of snacks. 


If they are threatened, octopuses shoot an inky fluid that darkens the water, confusing the aggressor.

Octopuses, like their cousin, the squid, are often considered “monsters of the deep,” though some species, or types, occupy relatively shallow waters.

Crabs, shrimps, and lobsters rank among their favorite foods, though some can attack larger prey, like sharks.

There is enough poison in one pufferfish to kill 30 adult humans, and there is no known antidote.


These clumsy swimmers fill their elastic stomachs with huge amounts of water (and sometimes air) and blow themselves up to several times their normal size.

Pufferfish have an average lifespan of 4 to 8 years!

Quahogs do not remain fixed for life in one spot; they move through the mud using a muscular foot.

Quahogs, or hard-shell clams, are shellfish that inhabit the mud flats along the eastern seaboard from Canada to Florida.

They are extremely efficient filter feeders, and large quahogs can filter about a gallon of water per hour.


Found in shallow waters of coral and rocky reefs in cracks and crevases on the reef.

Also known as Hexacorals, Red Waratah Anemone, Red Beadlet Anemone, Cherry Anemone and Kotore Anemone.

Most eat plankton, but they are capable of eating anything caught in their stinging tentacles including quite big fish.

Red Waratah Anemone

Starfish, like sea urchins and sand dollars, do not have backbones, which makes them part of a group called invertebrates.

The starfish eats by attaching to prey and extending its stomach out through its mouth.

Most starfish sport spiny skin and five arms, although some can grow as many as 50 arms.


Some kinds of sharks lay eggs; others, like the sand tiger, give birth to live young called pups.

Tiger Shark

Tiger Sharks generally hunt at night; just above the ocean floor.

The "tiger" was inspired by their big appetite. Tiger sharks look ferocious, with a row of jagged teeth that you can see even when their mouths are closed!

Commonly found in coral reefs, patch reef, and rocky tropical areas of the Indian and Pacific Oceans and the Red Sea. Some are found near Hawaii and Japan.


Mainly active in daytime, unicorn fish roam in groups feeding on algae.

They are generally not aggressive to each other, but when they do fight they use sharp scalpels by their tails as weapons, not their horns.

Male crabs tend to fight with each other over females or hiding holes.

Velvet crabs are omnivores, they feed mainly on alage, but also bacteria, oter crustanceans, molluscs, worms, and fungi.

Crabs communicate with each other by drumming or waving their pinchers.

Velvet Crab

They are grey or brown but turn a pinkish color as they age. 


Walrusses have thick skin and then a layer. Their blubber keeps them warm in icy waters. 

Walrusses live between 30-40 years in the wild. 

Xiphosura use spiny extension for navigation, burrowing into the sand and to help flip itself over, if it gets tipped onto its back.


They eat mollusks, worms and other invertebrates.

It can grow up to two feet long and one foot wide, but the only way it can do that is by molting.

Their bright yellow fades at night to help them hide from predators.

Yellow tangs feed on algae and other plant material. They also help ckean algae from the shells of sea turtles.

Yellow Tang

Yellow tangs are quite common and can be found in the shallow reef off the coast of Japan and Hawaii. They are also a very aquarium fish.

Zooplankton is made up of hundreds of thousands of different species of animals.


As in all food web chains, the zooplankton provide a foundation for so many other and larger food species that some forms of higher predators may be seriously impacted.

The word "plankton" refers to the floating marine organisms that live on the surface of oceans.

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Fun Manatees Facts for Kids. (2016, November 18). Retrieved March 21, 2017, from




Fun Walrus Facts for Kids. (2013, October 09). Retrieved March 21, 2017, from


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Herring Facts. (n.d.). Retrieved March 21, 2017, from 


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