Chimera Ants, there was a reason why they received this name.
A chimera was an ancient mythological beast that was formed from the combination of a lion's head, a goat's body, and a dragon's behind. This was a creature that personified a mishmash of random parts to create a terrifying monster.
As such, the chimeras that were normally found in games were described as monsters that were artificially created when different parts were brought together.
So for the Chimera Ants to receive this name, there was a reason.
It was simply because they were able to take in the attributes of the things that they ate that they were given the name chimera.
That was how that one ant had been able to mimic the voice of the rookie and the captain after eating parts from them.