Teammates struggle to lift a bull off the trapped leg of a charro, during the bull riding event in Mexico City on Feb. 28. <br><br>"We in charreria are taking things into our own hands," said Rojas. "We have codes, we have rules, for how to treat the animals. On the other hand, there is a lot of danger involved for the men doing these tricks." Animal rights groups have banned some events in the US but have not placed pressure on Mexican events.Rebecca Blackwell / AP
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