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"Based on the Hg-isotope variations we were able to link an initial pulse in Hg enrichment at the Triassic-Jurassic boundary to the emission of mercury from flood basalt volcanism," Wang Zheng explains.

Some studies have implicated estrogen and pregnancy hormones in HG.

In HG Wells's "The Sad Tale of the Dramatic Critic", a shy young journalist called Cummins is - despite never having set foot in a theatre in his life - appointed his paper's new drama critic.

Marlena Fejzo, a geneticist at UCLA, is focusing on the role of genetics in HG.

Yes, I'm talking about the path of destruction wreaked by the Martians in HG Wells's War of the Worlds.