Headbutts hurt the brain, even for a musk ox
A little damage may be OK, scientists suspect, since their daily life is not super complicated.
![Two musk oxen stand in the snow, about to butt heads.](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2022/05/052022_ls_musk-oxen-brains_feat.jpg?fit=1030%2C580&ssl=1)
The brains of headbutting musk oxen have signs of damage, a new study shows.
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