Related by context. Frequent words. (Click for all words.) 49 whale strandings 46 marine sediments 45 paleoclimate 45 foraminifera 45 undersea volcanoes 44 bathymetric 43 volcanically active 43 radiocarbon dated 43 glacial retreat 43 Denisovans 42 seamounts 42 flight recorders 42 EEGs 42 beaked whales 42 tide gauges 42 polar vortex 42 sediment cores 42 Higgs particle 42 climate modelers 41 musk oxen 41 upwellings 41 primate evolution 41 microfossils 41 isotopic composition 41 Neanderthal DNA 40 volcanic vents 40 sonars 40 terrestrial ecosystems 40 MARSIS 40 Antarctic ice 40 whale sightings 40 middens 39 sharpest contraction 39 datapoints 39 shipwrecks 39 recorders 39 fragmentary 39 igneous rocks 39 deglaciation 39 oceanographic 39 archaeologically 39 cockpit voice 39 oceanic crust 39 Weddell Sea 38 intertidal 38 mid latitudes 38 underwater volcanoes 38 bald eagle nests 38 Global Surveyor 38 atmospheric methane 38 trilobites 38 glaciations 38 harbor porpoises 38 interglacial period 38 ICESat 38 geologically active 38 Jean Paul Troadec 38 WMD stockpiles 38 fragments 38 continental crust 38 volcanic activity 38 gas hydrates 38 basking sharks 38 ammonites 38 Visit www.jetblue.com promise 38 benthic 38 radar altimeter 38 marine invertebrates 38 Cobscook Bay 38 orbiting Mars 37 galaxy formation 37 dinosaur footprints 37 fossil specimens 37 aragonite 37 Beringia 37 lake sediments 37 Arctic permafrost 37 extinctions 37 cockpit recorder 37 geologic 37 continental drift 37 Polar Regions 37 seismographs 37 Antarctic Peninsula 37 Lake Vostok 37 rookeries 37 equatorial Pacific Ocean 37 Antarctic Ice 37 nuclear submarine Kursk 37 Antarctic ozone 37 atmospheric CO 37 sunken vessels 37 subduction zones 37 Greenland glaciers 36 solar irradiance 36 Ellesmere Island 36 caribou herds 36 Kormoran 36 pingers 36 depositional 36 Farne Islands