Eighty fossils of six individuals that may have belonged to the species Homo antecessor will be found in 1994 and 1995 in Spain’s Atapuerca Mountains.

Numerous examples of cuts where the flesh had been flensed from the bones indicate that H. antecessor could have practiced cannibalism.

The best-preserved fossil of Homo antecessor is a maxilla that belonged to a ten-year-old individual found in Spain.

Based on paleomagnetic measurements, it is thought to be older than seven hundred and eighty thousand to eight hundred and fifty seven thousand years ago.

With a brain averaging one thousand cubic centimeters in volume. H. antecessor is about one point eight to one point six meters meters (five to six feet) tall, and males weigh roughly ninety kilograms (two hundred pounds).

Their brain sizes are roughly one thousand to eleven hundred and fifty cubic centimeters, smaller than the thirteen hundred and fifty cubic centimeter average found in modern humans.

Due to its scarcity, very little more is known about the physiology of H. antecessor, yet it is likely to have been more robust than H. heidelbergensis.

According to Juan Luis Arsuaga, one of the co-directors of the excavation in Burgos, H. antecessor might have been right-handed, a trait that makes the species different from the other apes.

This hypothesis is based on tomography techniques.

Arsuaga also claims that the frequency range of audition is similar to H. sapiens, which makes him believe that H. antecessor used a symbolic language and was able to reason.