Did you know that Singapore’s waters are home to more than 250 species of hard corals (32% of hard coral species found worldwide), more than 100 species of reef fish, about 200 species of sponges and 12 seagrass species? You can see some of these interesting marine species at the Sisters’ Islands Marine Park. 

1. Anemone shrimps (Periclimenes sp.)
   • Usually found on large sea anemones
   • Do not eat/get eaten by the host anemone; believed to shelter in the anemone for protection and may feed on left-over
   
    
2. Giant Clams (Tridacna spp.)
   • The largest living bivalve molluscs in the world
   • Individuals display a variety of colourful mantle
   • Three species are still found in Singapore
   
    
3. Seahorses (Hippocampus spp.)
   • Swims vertically upright
   • The male broods the young in their pouch
   • Require calm waters with many hiding places, such as seagrass meadows
   • Have bony plates just under their skin instead of scales
   
    
4. Black sea cucumber (Holothuria leucospilota)
   • Gathers food from the surface using its long feeding tentacles
   • Most of the body is usually wedged under rocks or crevices
   • Larger individuals that live in deeper water
   
    
5. Common sea star (Archaster typicus)
   • Grows up to about 12- 15cm
   • Feeds on detritus, decaying plants and tiny animals
   • Males usually move on top of females; believed to increase the chances of external fertilisation.