The worlds heavyest starfish is known only by its latin name Thromidia Catalai. It can reach over 6kg and be 63cm across.
Despite having no widely accepted common name, it is sometimes known as the "fat star".
The largest starfish in terms of span is also known only by its latin name of Midgardia xandaros. It is a filter feeder, and can reach 1.4 metres across, but it is very slender.
The generally accepted largest sea star in terms of sheer size is the sunflower sea star, or giant sun star Pycnopodia helianthoides. It often reaches 1 metre across, smaller than the Midgardia xandaros in terms of actual span, but far more massive. It can have up to 26 arms.
It is closely followed by the Crown-of-Thorns starfish. People have reported sighting some as big as 700mm in diameter from one tip to another. The normal size for a starfish is between 250mm to 350mm.
Source:http://library.thinkquest.org/10009/cots.htm
Parvulastra parvivipara, also known as the paddle-spined seastar, is the world's smallest starfish at 5 millimeters across. By contrast, the world's largest starfish, the sunflower seastar, is over 3 feet across.
There is no record of who exactly discovered starfish. There are millions of starfish species in oceans all over the world.
Yes starfish live on the ocean floor. Starfish are invertebrates and there are over 1500 different species of starfish in the world.
there are probably 100 diffrent kinds of starfish around the world
There are 2,000 species of starfish.
Starfish belong to the class Asteroidea within the phylum Echinodermata. They are characterized by their radial symmetry and typically have five arms, though some species can have more.
Average lifespan of a Starfish in the wild is up to 35 years
there are over 1,500 species of starfish in the world.
The world record for the longest living starfish is around 35 years.
Oceans!! Warm ones.
They live in all oceans around the world!
in all oceans in da world