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John’s Life cycle project. By John. Physical description. Sharp point on the end of the tail Flat body and tail 4inches to 22feet in length Pectoral fins look like wings Body triangle shaped like an arrow Some rays have spots Color like the sea, dark navy, black or brown
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John’s Life cycle project By John
Physical description • Sharp point on the end of the tail • Flat body and tail • 4inches to 22feet in length • Pectoral fins look like wings • Body triangle shaped like an arrow • Some rays have spots • Color like the sea, dark navy, black or brown • All white underneath • They are like a bat in the sea Rays are very cool because they have a very flattened arrow shape body. Rays are typically black or dark in color with a white underneath. Their large pectoral fins work like wings and they flap them to move through the water. Rays have a large rectangular mouth and their tails are poisonous.
Habitat • Rays are found in tropical waters • Live near coral reefs • Live in shallow water • Found in warm seas • Usually live near islands • Like to swim near the top of water Rays live in the Atlantic and Pacific Ocean. They need warm water to stay warm. Rays prefer shallow waters and like to stay close to the shore and swim on top of the water. Rays can be found in fresh water and salt water.
Food chain • Plankton is main food source • Eat shrimp, small fish and marine worms • There top predator is the Hammerhead shark • Big rectangular mouth to filter food • Rays spend many hours a day eating. They can consume up to 60 pounds of food a day. They eat by opening their large rectangular mouth and filter the food ingested. Rays prefer the food sources found near coral reefs.
Life cycle • Scientists know very little about the Ray’s life cycle • Average lifespan of a ray is 16-20 years old, however rays have been known to live up to 100 years old at times • Females produce babies from an egg that hatches inside her first and then she gives birth to a pup • The ability to have pups is based on size instead of age • A male must be 13 feet long to become a father • A female must be 16 feet long to become a mother • Pups weigh up to 24 pounds and are 4 feet long • It takes 1 -3 years for babies to develop inside their mother Rays live anywhere from 20-100 years old. Females usually have 1-2 babies per litter. A baby ray starts as an egg inside their mother. The baby egg hatches inside the mother and is delivered as a pup. It takes 1-3 years for a baby ray to develop inside their mother.
Fun Facts • Rays are related to sharks • Rays do not have bones • Rays can have a venomous tail and a spine • Can be dangerous to humans • Fresh water rays are a least 14 feet long • The ancient people of Peru worshipped rays • Rays can leap out of the water up to 7 feet high • Wingspan can be up to 20 feet in length Stingrays have venomous barbs, or tails, and manta rays don’t. There are about 25 species of rays in the world. Rays are classified as a fish, being one of the largest and continues to be one that we know least about.
