Backer Challenge Ends Today!

Hi all just a quick note to remind you that the backer challenge ends today. That means every donation–even just $1!–puts us in the running for a bonus award. The top 3 paleontology proposals in terms of backers will receive an extra $1000, $500 and $250. We are currently in fourth place, so every donation we receive today could make the difference.
The campaign runs for one more week. Look for more great bonus material: photos, stories and explainers in the week to come.
Above: A model Thalattosaurus chases an ammonoid at Sierra College Museum of Natural History, a great small museum in Rocklin California. Be sure to stop in for a visit if you are ever in the area.
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