Is a shark the perfect animal?

Do stingrays have a heart? What positive effects do humans have on weedy sea dragon? What is the largest shark in Australian waters? Do great white sharks drink water? How do you know if you're fish is just fat or pregnant? What is marine salt water? What kind of organism shows the most specialization? How do you get a spiky fish in ice age village? What is the ticker symbol for Fisher-Price? What is the difference between aquamarine and cyan? Do Goldfish make good pets? Are there sharks around North Keppel Island? Does a star fish have similar right and left body havles? What eats paedocypris? How big is a coelacanth? What are the different methods of fish cultivation in Visayas? What is Bombay duck? Will betta eggs die if they fall on the floor of the tank? Do peregrine falcons eat koi? What the difference between whales n fish?