Why do humans have canine teeth ... director of the Human Origins Program at the Museum of Natural History. Neanderthal DNA makes up a small percentage of the DNA in non-African people today ...

Narrator: Lions have them, hippos have them, and even you and I have them: canines, those long, pointy front teeth. They're actually the longest teeth in the human ... use canine size and shape ...

Of the 13 otter species, Asian small-clawed otters are the smallest ... The video above shows this little otter already has canine teeth. Human babies generally do not begin teething until ...

a small dog, that they could potentially swallow could cause them some GI upset. Narrator Another tip: avoid feeding your dog wet food, which clings to the teeth and encourages plague buildup.

To brush your dog's teeth, they need to be comfortable with ... Make sure you use dog toothpaste and not human toothpaste. Human toothpaste can make your dog really sick. You are going to want ...

Why do small dogs have bad teeth? As you may have noticed ... Use a dog toothbrush and pet-safe toothpaste - human toothpaste can be harmful to pets. Start slowly and be patient, gradually ...