Rocket frog! (Discover)
Enlarge the picture and look at the tip of the arrow. Last week, NASA launched the LADEE moon probe. Their launch pad is near a swamp. As this frog found out. Fly me to the moon!
Mercenary ants (Science)
You've probably had ant infestations. Did you know ants also have ant infestations? A species of fungus-farming ants in Central America unwillingly shares their nests with a parasite species that eats their food and occasionally their host ants. But it turns out the parasites, Megalomyrmex symmetochus, aren't a total loss. They defend their adopted nest against raider ants, with a chemical spray that not only poisons the invaders but screws up their chemo-ID system so they attack one another. The discoverers compare these parasites to mercenary troops, a drag on the economy in time of peace but a defense in time of war.
Down-home stem cells (Science)
Stem cells come in several varieties. One of the most interesting and potentially valuable are the "pluipotent" ones that can turn into almost any other kind of tissue. Biologists normally get them by either extracting them from embryos or by extracting more specialized stem cells from living tissues and then treating them in the lab. But when biologists developed a way of cultivating mouse stem cells inside mouse embryos, they found (1) they were able to and (2) the resulting cells were even more pluipotent than the lab-grown kind.