Kudu bulls have large horns with two and a half twists, which, were they to be straightened, would reach an average length of 120 cm, with the record being 187.64 cm. They diverge slightly as they slant back from the head. The horns do not begin to grow until the bull is between the age of 6–12 months, twisting once at around 2 years of age, and not reaching the full two and a half twists until they are 6 years old; occasionally they may even have 3 full turns. Male kudus exhibit sparring behaviour by interlocking horns and shoving one another. In rare circumstances, sparring can result in both males being unable to free themselves from the other’s horns, which can then result in the death of both animals. The greater kudu is also a target for poachers for meat and horns. The horns of greater kudus are commonly used to make Shofars, a Jewish ritual horn blown at Rosh Hashanah.