Why Baby Turtles Need the Hard Crawl

A marine biologist dumps hatchlings on the sand and walks away—cruelty, or the only training that works? From turtle crawls and chick shells to wind-starved trees and overprotected kids, this episode traces why opposition is not the enemy of growth but the medium that makes lasting strength possible. Blake said it centuries ago: without contraries, nothing progresses. Word of the day: inure — to toughen the spirit by steady, repeated meeting with what once felt too hard