A new species of dolphin was discovered by Australian zoologists off the coast of Melbourne, after they realized the 150 or so porpoises that were previously thought to be bottlenose dolphins actually differed significantly in skull shape and DNA. That, kids, is why you should always double-check your homework. Or, you know, dolphin skull shape. Same thing.
The periodic table of the elements now officially has two new members, its heaviest ever. The new elements, 114 and 116 weigh 289 and 292 atomic mass units, respectively. By comparison, lead’s atomic weight is 207.2.
This planet is home to some incredibly awesome things, and every year we enjoy hearing about the new creatures that had, until recently, escaped biologists' attention. Among scientists' top 10 new species for 2010: A leech with gigantic teeth, a bioluminescent fungus, a mushroom with gills for breathing underwater and a spider that spins material 10 times stronger than Kevlar.
See them all in our gallery.
Here at PopSci, there's nothing we love more than figuring out how something works, be it the latest technology, or a scientific breakthrough. That moment of discovery - let's call it a "how it works moment" - is almost as exciting for us buffs as it is for the researchers.