Tonight's installment of Life, the Universe and Hot Dogs, the regular lecture series that takes place at the Euclid Tavern, features Case Western Reserve University's Dr. Darin Croft, who will discuss some of the "weird and wonderful mammals" that roamed South America millions of years ago. Expect to hear about "armored" mammals with tail clubs, saber-toothed marsupials and sloths as big as elephants. Croft has spent nearly 20 years searching for mammal fossils throughout South America; he also recently published Horned Armadillos and Rafting Monkeys: The Fascinating Fossil Mammals of South America, a book inspired by his research. The talk begins at 7 tonight and it's free. (Niesel)