Starfish Presentation
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Transcript of Starfish Presentation
StarfishAlyssa Guerrero * Period 3
What is a Starfish?
* A starfish or a sea star is an invertebrate animal that lives in the ocean. They are echinoderms that belongs to the class of Asteroidea.
Where do Starfish Live?
* Sea stars are mostly found in tropical and temperate oceans around the world.
* They live in a variety of habitats from the intertidal zone to the bottom of the deep seas, but they mostly live in shallow marine environments.
What Do Starfish Eat?
* Sea stars are carnivores.
*They mostly feed on other invertebrates such as coral, shellfish, clams, and oysters
*They also eat fish and other animals.
*To catch prey they use their tiny suction cupped tubed feet
*Their stomachs then come out of their mouth and the stomach covers the prey to digest it.
Regeneration and Reproduction
* Sea stars have the ability to regenerate or re-grow their limbs after they have been removed.
* Their removed limbs can also form into a new starfish on its own.
*This is a form of asexual reproduction.
* Sea stars have the ability to reproduce sexually or asexually.
Starfish Predators
* The starfish is preyed upon by many animals.
* Some common predators are: fish, crabs, sharks, humans, and birds.
Star Fish Fun Facts
*Sea stars can change their gender if they need or want to.
* Sea stars don’t need brains and they don’t have blood.
*Starfish or sea stars are not fish.
* Sea stars have eyes.
* They can live up to 35 years.
Questions
1. Are sea stars carnivores?
2. Do sea stars have brains?
Bibliography
http://animals.nationalgeographic.com/animals/invertebrates/starfish/
http://animal.discovery.com/marine-life/starfish-info.htm
http://www.users.on.net/~jamesmosby/starfish/habitat.html
http://www.examiner.com/article/starfish-regeneration
http://marinelife.about.com/od/invertebrates/tp/seastarfacts.htm