A surprising way a gladiator could gain an advantage over an opponent was to be left-handed.

角斗士获得优势的一种令人惊讶的方式是左撇子。

If you choose B or C, your opponent could pick A and gain an advantage over you.

如果您选择 B 或 C，您的对手可能会选择 A 并获得对您的优势。

He says: " We have evolved with the capacity to be dishonest. It's part of our evolutionary psychological make up – because if we can gain an advantage over the people around us, we have a greater chance of surviving" .

他说：“我们已经进化出不诚实的能力。 这是我们进化心理构成的一部分——因为如果我们能够比周围的人获得优势， 我们就有更大的生存机会” 。