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How did animals the size of a goat evolve into the largest creatures on Earth? The discovery of a new dinosaur from Argentina, announced today, may offer some clues. Leer más.

Using powerful X-rays from Stanford’s synchrotron, SLAC National Accelerator Laboratory scientist Uwe Bergmann has analyzed the chemistry within an archaeopteryx fossil and feather and found a unique relation to the modern bird. Bergmann spoke about his findings at SLAC’s Panofsky Auditorium Tuesday evening. Leer más.

Shedd Aquarium’s iguana research expedition is for anyone with a sense of adventure and a desire to make a difference for wildlife conservation. We’ve designed a field experience that is exciting, challenging and entertaining while also safe, accessible and meaningful. We provide the expertise and equipment, but our volunteers provide the teamwork that makes the project possible. Expect to get wet and dirty, work hard, learn a lot and have fun. Our participants are men, women, older, younger, singles, couples and friends. Many are repeat participants. And our captains and our conservation and research staff members are as passionate about the iguanas and their ecosystem as they are knowledgeable. Leer más.