what is the second one?
Krill are small crustaceans of the order Euphausiacea.
Krill
Krill are small crustaceans of the order Euphausiacea, and are found in all the world's oceans. 
what is manta ray? Large rays belonging to the genus "Mobula" what kind of creatures are they? They are classified among the Myliobatiformes (stingrays and relatives) and are placed in the family Myliobatidae (eagle rays). is it a kind of fish? No, they are large rays. where do they live? They are found in warm temperate, subtropical and tropical waters. how do they look like? They have broad heads, triangular pectoral fins, and horn-shaped cephalic fins located on either side of their mouths. They have horizontally flattened bodies with eyes on the sides of their heads. what impact does it create in tourism industry? Sites at which manta rays congregate attract tourists, and manta viewing generates substantial annual revenue for local communities. any specific region where they are widely seen? Indo-Pacific and tropical east Atlantic what is food habits like? They consume large quantities of zooplankton in the form of shrimp, krill, and planktonic crabs. In deeper depths, mantas consume small to medium-sized fish.
wiki:11729795
Krill [SEP] Introduction
Krill are small crustaceans of the order Euphausiacea, and are found in all the world's oceans. The name "krill" comes from the Norwegian word "", meaning "small fry of fish", which is also often attributed to species of fish. Krill are considered an important trophic level connection – near the bottom of the food chain. They feed on phytoplankton and (to a lesser extent) zooplankton, yet also are the main source of food for many larger animals. In the Southern Ocean, one species, the Antarctic krill, "Euphausia superba", makes up an estimated biomass of around 379,000,000 tonnes, making it among the species with the largest total biomass.