A group of these creatures use rocks and tree trunks to crush the invulnerable warrior Caeneus.
One of these mythical creatures picks up a poisoned arrow and wonders how it can be so potent, but accidentally drops it on his foot and dies. A group of these creatures use rocks and tree trunks to crush the invulnerable warrior Caeneus. Some members of this race try to abduct Hippodamia during her wedding to Pirithous, which prompts a namesake war with the Lapiths. This race descends from the union between Ixion and the cloud nymph Nephele. The shirt that takes Heracles's life is tainted by the blood of one of these creatures named Nessus. The wisest of these creatures is a son of Cronus named Chiron. For 10 points, identify this half-man, half-horse race. 
One of these mythical creatures picks up a poisoned arrow and wonders how it can be so potent, but accidentally drops it on his foot and dies.
centaur [or hippocentaur]