The animal that did not sleep is the Bullfrog.
The bullfrog was chosen as an animal that doesn't sleep because when tested for responsiveness by being shocked, it had the same reaction whether awake or resting.
However, there were some problems with how the bullfrogs were tested.
All pets will poop but they may do so in different ways.
The pet that would not poop in the traditional way are birds as they don't have separate holes for pee and poop.
Birds, unlike mammals, do not have separate exits for urine and feces.
Both waste products are eliminated simultaneously through the cloaca.
While mammals excrete nitrogenous wastes mostly in the form of urea, birds convert it to uric acid or guanine, which reduces water loss in comparison.
Jellyfish don't poop from an anus but instead Jellyfish poop from their mouth.
The animal that has the grossest poop is the blue whale.
Other animals that have the grossest poop are elephants, goats and sheep.
The cleanest animal in the world is actually a pig.
Although it may seem strange that a pig could be the cleanest animal in the world because they like to play in mud it's actually true that pigs are one of the cleanest animals in the world.
Pigs also do not sweat which is also another reason they are the cleanest animals.
Pigs are unable to sweat; instead, they wallow in mud to cool down.
The pigs mucky appearance gives pigs an undeserved reputation for slovenliness. In fact, pigs are some of the cleanest animals around, refusing to excrete anywhere near their living or eating areas when given a choice.
Birds are also another cleanest animal but pigs are the cleanest animal in the world.
Other animals that are the cleanest in the world besides pigs are.
Dolphins.
Dogs.
Polar bears.
Whales.
Tigers.
Rabbits.
Chickens.
Deer.