51 Fun Sea Animals That Start With B [Plus Facts]

Last Updated on April 3, 2024 by Michele Tripple

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Today, we’re boarding our imaginary submarine to begin a breathtaking journey beneath the waves, discovering the brilliant sea animals that start with B. The ocean is a big, mysterious place, and the sea creatures that start with B are some of the most beautiful and bizarre inhabitants of this underwater world. Let’s buckle up and dive into the depths to meet these sea animals that start with B.

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First on our adventure is the Beluga Whale. These magnificent mammals are famous for their bright white color and friendly faces. Beluga whales love the icy cold waters and are known for their incredible vocalizations, earning them the nickname “canaries of the sea.” They can whistle, click, and even mimic other sounds, making the ocean a lively place!

Next, we bounce over to the world of the Box Jellyfish. Don’t let its simple box-like shape fool you; this jellyfish is one of the most fascinating creatures under the sea. With long, delicate tentacles that trail behind them, box jellyfish are not only mesmerizing to watch but are also equipped with a powerful defense mechanism. Their sting can be very dangerous, reminding us of the respect we must have for marine life.

Then, there’s the bustling world of the Blue Tang fish. If you’ve ever seen the movie “Finding Dory,” you’re already familiar with this vibrant and vivacious fish. Blue Tangs are stunning with their bright blue bodies and yellow tails, adding a splash of color to coral reefs. They’re social swimmers and love to glide through the water in groups, showing us the importance of friendship under the sea.

As we breeze through the alphabet of the ocean, the sea animals that start with B dazzle us with their beauty, behaviors, and the boundless mysteries they hold. From the beautiful Beluga Whale to the breathtaking Box Jellyfish and the buddy-loving Blue Tang, each creature invites us to learn more about the wonders of the watery world. So, let’s keep our eyes wide and our minds open as we continue to explore the amazing life beneath the waves!

Discover more sea animals with our sea animals that start with A.

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Complete List Of Sea Animals That Start With b

Here is a list of sea animals that start with B in alphabetical order. How many do you know from this list? Scroll down to learn more about each sea animal!

  • Baboon Crab
  • Baird’s Beaked Whale
  • Bala Shark
  • Ballan Wrasse
  • Banded Butterflyfish
  • Banded Coral Shrimp
  • Banded Snake Eel
  • Banggai Cardinalfish
  • Bar Jack
  • Barbel Steed
  • Barbeled Dragonfish
  • Barnacle
  • Barracuda
  • Barramundi
  • Barrel Sponge
  • Basking Shark
  • Batfish
  • Beaked Salmon
  • Beluga Whale
  • Benguela Jewelfish
  • Betta Fish
  • Bicolor Parrotfish
  • Bigeye Tuna
  • Bigmouth Buffalo
  • Bignose Shark
  • Black Dragonfish
  • Black Scorpionfish
  • Black Sea Bass
  • Blacktip Reef Shark
  • Blobfish
  • Blue Angelfish
  • Blue Crab
  • Blue Marlin
  • Blue Mussel
  • Blue Shark
  • Blue Whale
  • Bluefin Tuna
  • Bluehead Wrasse
  • Bluestreak Cleaner Wrasse
  • Boa Dragonfish
  • Boarfish
  • Bocaccio Rockfish
  • Bonefish
  • Bonito
  • Bottlenose Dolphin
  • Bowhead Whale
  • Box Crab
  • Box Jellyfish
  • Brazilian Guitarfish
  • Bridled Tern
  • Bull Shark

Fun Facts About Sea Animals That Start With b

Ready to increase your knowledge of sea animals that start with B? Dive in and learn more about all the different sea animals on the list!

Sea Animals That Start With B: Baird's Beaked Whale
  • Baboon Crab: Baboon Crabs have big, strong claws, almost like they’re showing off big muscles. They’re like the strongmen of the crab world, always ready to flex.
  • Baird’s Beaked Whale: This whale is really shy and has a long, pointy nose. It’s like the unicorn of the sea, mysterious and hard to find.
  • Bala Shark: Bala Sharks aren’t real sharks; they’re peaceful fish that look a bit like sharks. They’re like the gentle giants of the fish tank, swimming around gracefully.
  • Ballan Wrasse: These fish have thick lips and love to eat sea lice off other fish. They’re like the helpful dentists of the sea, making sure everyone’s teeth are clean.
  • Banded Butterflyfish: With beautiful stripes and colors, Banded Butterflyfish look like they’re wearing fancy costumes all the time. They’re like the party-goers of the coral reefs.
  • Banded Coral Shrimp: These shrimp have bright colors and long, banded legs. They’re like the cheerleaders of the sea floor, always looking flashy.
  • Banded Snake Eel: Banded Snake Eels are long and slithery, hiding in the sand. They’re like the sneaky spies of the sea floor, always watching and waiting.
Sea Animals That Start With B: Betta Fish
  • Banggai Cardinalfish: These small, striped fish are very pretty and like to stay close to home. They’re like the homebodies of the sea, preferring their own little neighborhood.
  • Bar Jack: Bar Jacks are fast swimmers with a sleek, blue line down their sides. They’re like the race cars of the sea, zooming around quickly.
  • Barbel Steed: These fish have whisker-like barbels, which help them find food. They’re like the detectives of the sea, using their whiskers to solve mysteries.
  • Barbeled Dragonfish: With big teeth and a light to attract prey, Barbeled Dragonfish are like the monsters under the bed but in the deep sea, both scary and fascinating.
  • Barnacle: Barnacles stick to rocks and boats and have hard shells. They’re like the little hitchhikers of the sea, catching a ride wherever they can.
  • Barracuda: Barracudas are fast and have sharp teeth. They’re like the underwater lightning bolts, quick and a bit dangerous.
  • Barramundi: A favorite for fishermen, Barramundi are big, silver fish that taste really good. They’re like the treasure of the rivers and seas, always a great catch.
Sea Animals That Start With B: Blue Angelfish
  • Barrel Sponge: These sponges look like big barrels stuck to the sea floor. They’re like the giant cups of the sea, holding lots of water inside.
  • Basking Shark: Basking Sharks are huge but harmless, opening their big mouths to eat tiny sea creatures. They’re like the gentle giants who just want to snack all day.
  • Batfish: Batfish have fins that look like bat wings. They’re like the superheroes of the sea, ready to “fly” to the rescue.
  • Beaked Salmon: These fish have a funny little “beak,” making them look a bit goofy. They’re like the comedians of the sea, always ready to make you smile.
  • Beluga Whale: Beluga Whales are white and super friendly. They’re like the smiling marshmallows of the sea, always happy to see you.
  • Benguela Jewelfish: These sparkly fish are like the jewels of the ocean, shimmering and beautiful, hiding in the water like precious gems.
  • Betta Fish: Betta Fish have bright colors and fancy fins. They’re like the princes and princesses of fish bowls, wearing their best outfits every day.
  • Bicolor Parrotfish: Bicolor Parrotfish look like they have two colors split down the middle. They’re like the split-personality fish of the reef, two looks in one.
  • Bigeye Tuna: Bigeye Tuna have really big eyes to see in the deep sea. They’re like the night-vision goggles of the fish world, always watching.
  • Bigmouth Buffalo: These fish have huge mouths for sucking up their food. They’re like the vacuum cleaners of the river, always ready to clean up.
  • Bignose Shark: Bignose Sharks have, well, big noses! They’re like the Pinocchios of the shark world, but much cooler and more mysterious.
  • Black Dragonfish: Black Dragonfish look scary with their big teeth and glowing eyes. They’re like the dragons of the deep sea, mysterious and a bit frightening.
  • Black Scorpionfish: With spiky fins and a grumpy look, Black Scorpionfish are like the grumpy old men of the sea, best left alone.
  • Black Sea Bass: These fish are strong and can change colors. They’re like the chameleons of the cooler seas, blending in wherever they go.
  • Blacktip Reef Shark: With black tips on their fins, these sharks patrol the reefs. They’re like the police officers of the reef, keeping an eye on things.
  • Blobfish: Blobfish look sad and squishy, but they’re just adapted to deep-sea life. They’re like the squishy toys of the ocean, except they don’t like to be squeezed.
  • Blue Angelfish: Blue Angelfish are beautiful and graceful, gliding through the water. They’re like the ballet dancers of the sea, elegant and lovely.
Sea Animals That Start With B: Boarfish
  • Blue Crab: Blue Crabs have bright blue claws and love to scuttle sideways. They’re like the little blue racers of the sea floor, always in a hurry.
  • Blue Marlin: Blue Marlins are huge fish with long, pointy noses. They’re like the unicorns of the sea, fast, powerful, and majestic.
  • Blue Mussel: Blue Mussels cling together in groups. They’re like the close-knit families of the sea, holding on to each other tight.
  • Blue Shark: Blue Sharks are sleek and fast, with beautiful blue skin. They’re like the sports cars of the shark world, built for speed.
  • Blue Whale: Blue Whales are the biggest animals ever! They’re like the giants of the sea, but gentle, eating tiny food with their big mouths.
  • Bluefin Tuna: Bluefin Tuna are super strong and can swim very fast. They’re like the athletes of the fish world, always on the move.
  • Bluehead Wrasse: These fish have bright blue heads, making them easy to spot. They’re like the punk rockers of the reef, showing off their cool hairdo.
  • Bluestreak Cleaner Wrasse: Bluestreak Cleaner Wrasse help clean other fish. They’re like the helpful doctors of the reef, making sure everyone stays healthy.
  • Boa Dragonfish: Not as well-known, but imagine a dragonfish that’s sleek and mysterious, slithering through the water like a sea serpent.
  • Boarfish: Boarfish have a unique shape and are fun to look at. They’re like the oddballs of the sea, quirky and different.
  • Bocaccio Rockfish: These fish have a serious look and live deep in the ocean. They’re like the wise old folks of the sea, full of knowledge and secrets.
  • Bonefish: Bonefish are super speedy and love shallow waters. They’re like the sprinters of the sea flats, zipping around quickly.
  • Bonito: Bonito are like smaller tuna, fast and sleek. They’re the little speedsters of the sea, darting around and chasing their food.
  • Bottlenose Dolphin: Bottlenose Dolphins are smart and friendly, always ready to play. They’re like the happy-go-lucky friends of the sea, always smiling.
  • Bowhead Whale: Bowhead Whales have huge mouths and can live for centuries. They’re like the wise old guardians of the Arctic seas, ancient and mysterious.
  • Box Crab: Box Crabs can fold up like a box. They’re like the origami artists of the sea floor, folding up neatly when they need to hide.
  • Box Jellyfish: Box Jellyfish have deadly stings, so be careful. They’re like the dangerous beauties of the sea, pretty but perilous.
  • Brazilian Guitarfish: These fish look a bit like a guitar. They’re like the musicians of the sandy sea floor, strumming along in the water.
  • Bridled Tern: Bridled Terns are birds that love the sea, flying over the waves. They’re like the scouts of the sky, watching over the ocean.
  • Bull Shark: Bull Sharks are tough and can live in fresh water too. They’re like the tough guys of the shark world, not afraid to swim up rivers.

What sea animal that starts with B are you most excited to see in real life? Share in the comments!

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