Tuna Observation

Tuna are small to large saltwater fish found in temperate and tropical waters. They are classified in the Thunnini tribe. There are 15 tuna species. There are different species of tuna such as Albacore Tuna, Atlantic Bluefin Tuna, Skipjack Tuna, Yellowfin Tuna, and the Bigeye Tuna. The Atlantic Bluefin Tuna is the largest tuna in the world and it can reach 15 ft and weigh 1,500 pounds. The Yellowfin Tuna have long yellow fins and reach 400 pounds. Yellowfin tuna swim 50 mph.  They have two dorsal fins and have 7–10 finlets between the dorsal fin and the tail.

Shark Observation (Pt.5)

The Chillin Lemon Shark sits on the sand and rests. They eat bony fish and crustaceans. They are 10.5 feet long and live 11–12 years. They weigh 220 pounds. The Dog Shark eats small fish, crab, shrimp, and squid. They weigh 8 pounds. They are 2 ½ to 3 ½ feet long. They live up to 40 years. The Caribbean Reef Shark lives 14+ years. They weigh 150 pounds. They are 8–9 feet long. They eat lobster, squid, octopuses, shrimp, and reef fishes. The Goblin Shark eats teleost fish, rattails, dragonflies, and crustaceans. They are 12 feet long and weigh up to 460 pounds. They live up to 60 years. 

Shark Observation (Pt.3)

Tiger Sharks are 16 feet long and weigh about 1,000 pounds. They swim close to shore. They like to eat fish and other sharks but their favorite food is a sea turtle. The Blue Shark has big pectoral fins. They live where the water is really deep. The top part of them is blue and the bottom is white. They eat squid and fish. The Scalloped Hammerhead swims in large schools. During the day, they are getting cleaned, and at night, they are hunting. They have to keep swimming to breathe. The Bull Shark is the third most dangerous shark in the world. They eat almost every fish. They swim in murky water by beaches. The Greenland Shark lives in cold water. Some odd animals have been found in its stomach such as a reindeer. This shark is poisonous.

Shark Observation (Pt.4)

The Great White shark can grow up to 20 feet long and 7,000 pounds. They live in coastal water where people surf. Baby great white sharks eat little fish and stingrays and the adults eat big marine animals such as seals and dolphins. The Sand Tiger Shark eats small slippery fish. Sand Tiger sharks like to gather around at some times in the year. The Lemon shark reaches ten feet long. They have two dorsal fins almost on the same sides. They sometimes rest at the bottom of the ocean. The Thresher Shark has the longest tail in the world. They are extremely scared of bubbles and people. They are more scared than a Hammerhead. The Great Hammerhead Shark reaches 20 feet long. Females can give birth to 55 babies at a time. Their favorite food is stingrays. They are a bit shy toward people. The Whitetip Reef Shark is a small shark. It can reach up to five pounds. They learn to hunt by following divers lights. The Gray Reef Shark can reach up to 5 feet long. They mostly hunt at night. They take large bites out of their prey rather than eating them whole. They are the most common shark in the world. The Oceanic Whitetip Shark has a pilot fish swimming by it. They eat many sea creatures such as squid, rays, tuna, and some marine mammals. They can live up to 25 years. They can be 13 feet long and weigh 200 pounds. The Nurse Shark reaches ten feet long. The Nurse Shark’s favorite food is conch, which they slurp out of the shell.  

Shark Observation (Pt.2)

The biggest fish and shark is the whale shark. Whale Sharks are also called carpet sharks because of their fancy patterns. They can reach over 40 feet in length and they weigh over 50,000 pounds. They can live up to 70 years. They are filter feeders. They move forward with their giant mouths open letting plankton flow inside. The Basking Shark has a huge mouth that filters plankton. It is the world’s second largest fish and shark. It lives in cool temperate waters. Basking Sharks jump out of the water to get rid of the lampreys eating them.

Shark Observation (Pt. 1)

Sharks have nostrils like humans but they don’t use them for breathing like we do. Their sense of smell is very useful for hunting. Sharks have seven senses the five that humans have and two more called lateral line system, which detects pressure variations and electrosensory system which detects electrical currents. Their electrosensory system is so sensitive and it can detect the electrical currents of a fish swimming in the water in the dark. Sharks eyes have the same basic structure as a human eye. Sharks are the only fish with eyelids. Their eyes are ten times more sensitive in low light than humans. Shark ears are just a tiny dot. They can hear about ten to 800 hz. Most sharks can rest and breathe but some others can’t. Some sharks such as Hammerhead Sharks have to keep swimming to breathe and if they stop swimming they will drown. Sharks that feed on fish have pointy teeth to eat slippery fish and swallow it whole. Sharks that feed on invertebrates have flat teeth for crushing prey.

Hagfish Observation

Hagfish are sometimes 20 inches long. They have loose–fitting skin with no scales. Their mouthparts move horizontally with sharp projections to rip into fish flesh. They can’t see and don’t have any teeth. They produce slime into the predator’s mouth and it clogs its mouth causing it to die. They catch their prey by blending into the ground and wait for its prey to land by it. Eel skin is the same from a hagfish. They eat almost every type of fish.

How Fish Eat

How fish eat is that they use their big mouth and suck up water with the food coming in their mouth. After the food is in their mouth, they use their gills to push all the water out of their body. Most fish eat this way except for sharks, whales, octopuses, and squids.

Woodpecker Observation

Acorn Woodpeckers can be found in the southwestern part of the United States. Acorn Woodpeckers make holes to store acorns in. Male and female Red Headed Woodpeckers look the same. They eat nuts, fruits, insects, and seeds. Red Headed Woodpeckers live in the central and eastern United states. Pale–billed Woodpecker lives in northern Mexico. Pale–billed Woodpeckers live in wet forests and woodlands. Pale–billed Woodpeckers have white stripes on their shoulders and back, and make holes to eat insects. The Ivory–billed Woodpecker is extinct.

Parrot Observation

There are about 372 parrot species. They live in all of South America, Africa, and Australia. There are 350 true parrot species. The Yellow and Blue Macaw is a large long-tailed bird found in South America. The Scarlet Macaw lives in the tropics of South America. Lorikeets are small to medium sized parrots and they suck nectar. The Rainbow Lorikeets are found in Australia. The Dusky lory is an orange and black parrot. The African Gray Parrot is all gray and its tail is a little red. African Gray Parrots are very smart and can live up to 30 years. There are 21 species of cockatoos. Cockatoos can live 70–80 years. The Rose Breasted Cockatoo is found throughout Australia. The Palm Cockatoo is black with red cheeks. 

Hummingbird Observation

The smallest bird in the world is the Bee Hummingbird. It weighs less than a penny. They can flap their wings 80 times per second. They drink nectar and need lots of energy to survive. They have long beaks and tongues to suck nectar. Anna’s Hummingbird lives in Western North America, such as California. Their nests are very small. If there is not enough food they will fight for it.