A Dutch scientist claims to have discovered a new species of wild pig nearly twice the size of other pigs in the remote south eastern Amazon region of Brazil.

At four feet long and 90 pounds, the pig dubbed Pecari maximus has been there for a long time and a familiar sight to natives on the basin of the Rio Aripuan?. It is also the latest in a string of new species that Marc van Roosmalen reported to have found since 1996.

In his 20-year-career, van Roosmalen has discovered previously unknown types of monkey, marmoset and porcupine, including the colourfully-named Zog-Zog monkey, or genus Callicebus, and the shallow clear-water adapted Dwarf Manatee.

His findings were published in the Oct. 29 edition of the German scientific journal Bonner Zoologische Beitrage.

The latest discovery of peccary was made by him by accident in 2000, while searching for a new monkey species.

According to him, the new pig species is remarkable for traveling in small groups, usually two adults. It is also sometimes accompanied by one or two offspring, while other types tend to move in large herds.

According to the DNA analysis, the animal diverged from the most closely related species, Pecari tajacu, or collared peccary, about 1 million to 1.2 million years ago, the Associated Press reports.

However, scientists still believe that more research is needed to confirm the species is new. Until now, only three species of peccary were known to science – the collared peccary, the white-lipped peccary and the Chaccoan peccary.

Peccaries, hoofed animals closely related to swine and hippopotami, usually live in large groups. The new giant peccary species, however, is only found in pairs or small family groups.