Number 410

Fri, 24 Jul 2026 14:24:10 -0700

== let’s hope so
Tiny tree snails make historic comeback 40 years after vanishing from the wild

The rare snail species’ return demonstrates an incredible conservation achievement, a first for any invertebrate species previously deemed “Extinct in the Wild” being re-established outdoors. Yet the story began with one of conservation’s most infamous blunders.

Exceptional memory in 80s defies simple Alzheimer’s genetic risk explanation

Many people assume that some memory decline is an inevitable consequence of getting older. But a select group of older adults, known as “SuperAgers,” reach their 80s and 90s while retaining memory performance as good as or better than that of people in their 50s and 60s.

Cryology on A Reading List of Aperiodic Frequency

Number 410