On the Conversation website, Christopher Sandom discusses Shifting Baseline Syndrome. In the book Anticipatory History, National Trust ranger Justin Whitehouse described this phenomenon as “personal and ‘generational’ amnesia, due to relatively short life spans and memories.” Whitehouse was describing people’s tendency to imagine contemporary natural or cultural features (in his case, the harbour wall at Mullion in Cornwall; in Sandom’s, the wildlife of Britain) as the ‘natural’ state, set in time around their own childhood or maybe stories from their grandparents’ times. We discount longer-term trends (and our parts in them), underestimating the true scale of past – or future – change.
No one does interesting, thoughtful science films quite like David Malone. So it’s great to see again 2013’s Metamorphosis: the science of change. There’s the familiar but fascinating science of insects shape-shifting from one form to another — caterpillar to butterfly — or taking on completely new behaviours — locusts switching from loners to swarms. Explanations of tadpoles interpreting environmental cues to trigger their transformation into frogs. And there’s the disturbing, radical story of creatures that are two life forms simultaneously: genetically identical but morphologically distinct, radically different.Continue reading “msb ~028 Metamorphosis”