The La Brea asphalt seeps are practically synonymous with megafauna. Sculptures of American lions and scrapping Smilodon draw visitors into the on-site Page Museum, well-stocked with Ice Age celebrities that have been reconstituted from the mind-boggling number of bones found beneath Los Angeles. Even more bones are kept in rows upon rows of bins in the collections – perhaps the greatest fossil dataset in the world – but it would be a mistake to think that La Brea is all about sabercats and mammoths. The story of prehistoric California was like, and how the world has changed as the last Ice Age slipped away, is kept by a diversity of meeker creatures, including a pair of unborn leafcutter bees that