'Gifted' dogs learn from eavesdropping, and more...

Some dogs are more adept at learning language than others. Researchers studying these special dogs discovered that, much like toddlers, these smart furry canine companions can pick up words just by eavesdropping on their owners' conversations. PLUS Tracking space debris using seismometersUsing nitrogen to boost treesHow Mars shapes our climateExtracting ice age mammoth RNA and using lichens to find dino bones