>Then he went up from there to Bethel; and as he was going up by the way, young lads came out from the city and mocked him and said to him, "Go up, you baldhead; go up, you baldhead!"
>When he looked behind him and saw them, he cursed them in the name of the LORD. Then two female bears came out of the woods and tore up forty-two lads of their number.
Bears are solitary by nature and only live with their cubs temporarily, in the case of females, or get together to mate when they are in heat (in gendered pairs). Two female bears wouldn't team up to kill 42 kids for any logical reason.