Imagine being on the shore of the Western Interior Seaway, 73 million years ago, near what is now Fort Peck Lake and the Charles M. Russell National Wildlife Refuge. (Yes, Montana once had beachfront property along a huge, warm, shallow inland sea!) You spy elasmosaurid Nakonanectes bradti as she comes up for air, showing teeth the size of a great white shark’s.

National outrage over the killing of Tyre Nichols has prompted renewed calls on Capitol Hill for police reform. But in a divided Congress, bipartisan reform legislation is unlikely.