Scientists have made new discoveries about woolly mammoths, with one finding suggesting that male woolly mammoths experienced hormone-fueled aggression. The research may have involved the analysis of a male woolly mammoth tusk, and could have implications for understanding the lives of these ancient creatures. However, the specifics of the findings and the methods used to obtain them are not entirely clear, with some reports mentioning the use of proteins, RNA, and other techniques to uncover secrets about ancient species.