Explainer: The world’s 10 smartest animals. We humans have the ability to learn, to reason and solve problems. We're self-aware, and we're also conscious of the presence, thoughts and feelings of others. We make tools and practice the art of deception. We're creative.
http://www.nbcnews.com/id/24628983/ns/technology_and_science-science/t/smartest-animals/
Other members of the animal kingdom exhibit signs of intelligence as well, and some scientists might say the definition of animal vs. human intelligence is merely a matter of degree - a point that was brought home in 2005 when the London Zoo put Homo sapiens on display in the exhibit pictured here.
http://www.nbcnews.com/id/24628983/ns/technology_and_science-science/t/smartest-animals/
Here's the dirt on pigs: They are perhaps the smartest, cleanest domestic animals known - more so than cats and dogs, according to some experts. But pigs don't have sweat glands, so they roll around in the mud to stay cool. A sign of their cleverness came from experiments in the 1990s.
http://www.nbcnews.com/id/24628983/ns/technology_and_science-science/t/smartest-animals/
Pigs are actually smart animals. And despite popular notion, pigs are one of the cleanest animals around if they are given a choice. If you provide them with enough space, they will make sure to defecate in an area far from its dining and living spaces.
http://www.therichest.com/animals/the-top-10-smartest-animals-in-the-world/
What is the cleanest animal? Cats, they always keep themselves clean.     Pigs are not the cleanest, clearly the truth is out there, Pigs live in their own faeces and I would advise you visit a f…arm. Pigs have been banned for humanity, firstly the Jews, then Christians and then Muslims.
http://www.answers.com/Q/What_are_the_10_cleanest_animals_in_the_world
Believe it or not the cockroach is the cleanest animal out there. They clean their whole body constantly because their lifestyle, which would be dirty areas such as the sewers…. If it weren't for them, the world would be a much dirtier place since they eat everything whether its rotting or not.
http://www.answers.com/Q/What_are_the_10_cleanest_animals_in_the_world
The top 10 cleanest animals are Dogs, Pigs, Cockroaches, Birds, Marine Animals, Reptiles, Butterflies, Bee's, Polar Bears, and Tigers. The top 10 cleanest animals are Dogs, Pigs, Cockroaches, Birds, Marine Animals, Reptiles, Butterflies, Bee's, Polar Bears, and Tigers.
http://www.answers.com/Q/What_are_the_10_cleanest_animals_in_the_world
But that’s another story. But after man, which animals come in as the most intelligent. A lot would like to think it is the dog because of its extreme loyalty and because it provides companionship to man. But some animals actually possess intelligence that leaves mankind amazed. Here is a list of the top 10 smartest animals in the world.
http://www.therichest.com/animals/the-top-10-smartest-animals-in-the-world/
This article presents religious views on unclean animals. For discussion in relation to specific animals and food, see Taboo food and drink. The pig is considered an unclean animal as food in Judaism and Islam. In some religions, an unclean animal is an animal whose consumption or handling is taboo. According to these religions, persons who handle such animals may need to ritually purify themselves to get rid of their uncleanliness.
https://en.wikipedia.org/wiki/Unclean_animal
In the Torah, some animals are explicitly named as pure or impure, while others are classified by anatomical characteristics or other criteria. In some cases, there is some doubt as to the precise meaning of the Biblical Hebrew animal name.
https://en.wikipedia.org/wiki/Unclean_animal
what is the cleanest animal
Pig is the cleanest animal.