SHARK
2/3 of the EARTH is covered in water
SHARK
thelovelyseas:

012_adj_DSC_3016 Arborek Jetty by edpdiver on Flickr.
thelovelyseas:

013_adj_DSC_3103 puffer under Arborek Jetty by edpdiver on Flickr.
thelovelyseas:

Sea Cow by Dmitry Miroshnikov on Flickr.
cynthesis:

Underwater there is amazing life, like this jellyfish with dozens of silver little fish among its long tentacles. 
via cynthesis
ZoomInfo
thegoddamazon:

astronomy-to-zoology:

Helmet urchin
(Colobocentrotus atratus)
also referred to as Shingle Urchins are a a species of sea urchin of the family Echinometridae. they can be found on rocks nears shores of the Indo-West Pacific particularly in Hawaii. they look very different from other sea urchins as their spines have been modified to be flattened and smooth in order to better withstand the waves that crash against the rocks they live on in order to feed on periwinkles and algae. they are usually a maroon color and grow as big as a softball.
Phylogeny
Animalia-Echinodermata-Echinoidea-Echinoida-Echinometridae-Colobocentrotus
thegoddamazon:

astronomy-to-zoology:

Helmet urchin
(Colobocentrotus atratus)
also referred to as Shingle Urchins are a a species of sea urchin of the family Echinometridae. they can be found on rocks nears shores of the Indo-West Pacific particularly in Hawaii. they look very different from other sea urchins as their spines have been modified to be flattened and smooth in order to better withstand the waves that crash against the rocks they live on in order to feed on periwinkles and algae. they are usually a maroon color and grow as big as a softball.
Phylogeny
Animalia-Echinodermata-Echinoidea-Echinoida-Echinometridae-Colobocentrotus