Interesting Animals - Elephants
According to a study carried out at the University of Tokyo, compared with 13 other mammal species studied, African elephants have the most genes related to smell: 1,948. (That's more than twice the number of olfactory genes in domestic dogs and five times more than in humans. The following animals were tested in the battle of the schnozes:- Elephant - 1948 Rat - 1207 Cow - 1196 Mouse - 1130 Horse - 1066 Dog - 811 Guinea Pig - 796 Rabbit - 768 Human - 396 Chimpanzee - 380 Marmoset - 366 Macaque - 309 Orang-utan - 296 So, why don't we use sniffer elephants or even sniffer rats?) Source - The Wright Stuff