Charles Darwin might have picked up a parasite on that trip that left him with the chronic digestive problems which he was known to suffer later in his life.
Previously hard to get, an astrocytes can now be grown in the billions and trillions from a single stem cell, enabling lab studies on neurological conditions.
A group of taxonomists made a 2011 top 10 list of the coolest new animal and plant species discovered last year. A bottom-dwelling batfish tops the list.