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Science

"Ravens have paranoid, abstract thoughts about other ________."

Can You Finish Off These Science Headlines?

The story was based on a paper out in the journal [Scientific Reports](https://www.nature.com/articles/srep40537) about a zebra shark that switched from sexual reproduction to "parthenogentic" reproduction –where an embryo forms without the need for fertilisation.

What is missing?

The findings were published in the journal [Proceedings of the Royal Society B](http://rspb.royalsocietypublishing.org/content/283/1845/20162382). The researchers found that a type of slime mould could transfer things they'd learnt to other individuals through a process called cell fusion.

The story is based on a paper in the journal [Nature Communications](https://www.nature.com/articles/ncomms10506) that showed ravens take into account the "visual access" of others, by guarding their things when a peephole is opened – so someone outside could see them – but not when it is closed.

The story was about the record number of Americans – over 18,300 – who applied to become [astronauts](https://www.theatlantic.com/science/archive/2017/06/nasa-astronauts/529149/) in NASA's latest round of recruitment.

The story is based on a paper in the journal [Nature](https://www.nature.com/nature/journal/v542/n7640/full/nature21072.html) about the fossil of a 540 million-year-old, millimetre-long creature that was found in northwest China.

I'm sorry but Curiosity is never coming back. NASA is, however, trying to figure out what's called a [sample return mission](https://www.scientificamerican.com/article/nasa-debates-how-to-retrieve-rocks-from-mars/) that would involve bringing rocks from the red planet to Earth. Its 2020 rover will cache a sample and keep it on Mars, ready to be picked up by a later spacecraft and delivered to scientists on Earth for testing.

In the journal [Science](http://science.sciencemag.org/content/357/6349/378) scientists report a new kind of adhesive, inspired by slug slime, that could be used in the future to stick together biological tissues.

The story is based on a paper out in the journal [PNAS](http://www.pnas.org/content/114/30/7822). The researchers found that humpback whales learn new songs "verse by verse", mixing them with old songs during the transition period.

The story is based on a paper in the journal [Nature Communications](https://www.nature.com/articles/ncomms14914) in which researchers did a "biogeochemical" analysis to track past penguin populations on Ardley Island in Antarctica. They found that large eruptions of the nearby Deception Island volcano nearly wiped out the colony, and it took hundreds of years for it to recover.

A paper in [Nature Astronomy](https://www.nature.com/articles/s41550-017-0219-9) describes how scientists at the SLAC National Accelerator Laboratory in the US simulated the conditions on icy giants like Neptune by shooting lasers at polystyrene, creating nanodiamonds just a few nanometres wide. The scientists say the diamonds created on the real planets would probably be bigger.

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Can You Finish Off These Science Headlines?

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