This Week in Science

In this week's Science, a team of Spanish scientists publishes a study showing that roundworms exposed to high temperatures undergo genetic changes that are passed to their offspring for many generations through both sperm and egg. Previous work has shown that starvation or exposure to high temperatures can alter the expression of messenger RNA in Caenorhabditis elegans and that this effect can persist in up to three generations.

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A phylogenetic analysis indicates two venomous Australian spiders are more closely related than thought, the International Business Times reports.

Technology Review reports that 2017 was the year of consumer genetic testing and that it could spur new analysis companies.

In Science this week: CRISPR-based approach for recording cellular events, and more.

A new company says it will analyze customers' genes to find them a suitable date, though Smithsonian magazine says the science behind it might be shaky.