Doom may be impeding as some deny climate change and see omens in the solar eclipse, but NASA is too broke to send us all to Mars, so we spent this week enjoying some cool things right here on Earth—like narwhals! Continue reading ICYMI: Highlights from the week that was July 30 – August 5, 2017
The narwhal tusk is the opposite of a human tooth, rigid in the center and surrounded by a flexible outer layer containing porous tubules. Scientists have long realized the signals a narwhal receives from the nerves in its spiral tusk—which is actually a wildly elongated tooth—provide critical information about its icy ocean environment. Dentist to… Continue reading How is the narwhal’s tusk like a human tooth?