Octopuses hunt by 'tasting' with their suckers

00:44 The unusual receptors that let octopuses hunt by touchResearchers have shown that the suckers of octopuses are covered with specialised receptors that allow them to taste by touching things. Similar receptors are also found in squid, but there are differences that mirror differences in the animals’ hunting behaviours; while octopuses feel for their prey, squid pull things towards themselves before deciding whether or not to eat it.Research article: Kang et al.Research article: Allard et al.Nature video: How octopuses taste with their arms08:48 Research HighlightsHow climate change has been linked to a devastating avalanche in the Italian Alps, and evidence of hallucinogenic drug use in prehistoric Europe.Research Highlight: A glacier’s catastrophic collapse is linked to global warmingResearch Highlight: Hair buried in a cave shows hallucinogen use in ancient Europe11:31 Briefing ChatWe discuss some highlights from the Nature Briefing. This time, what climate scientists can learn from medieval descriptions of lunar eclipses; how to retrieve rock samples from the surface of Mars; and the ongoing debate about whether T. rex had lips.Nature News: Medieval accounts of eclipses shine light on massive volcanic eruptionsNature News: Mars rocks await a ride to Earth — can NASA deliver?Nature News: Facelift for T. rex: analysis suggests teeth were covered by thin lipsHelp us win a People’s Voice award in this year’s WebbiesVote for How the Black Death got its start in the ‘Best Individual Episode: Science & Education’ category.Vote for Racism in Health: the harms of biased medicine in the ‘Limited-Series & Specials: Health, Science & Education’ category.Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday. Hosted on Acast. See acast.com/privacy for more information.