Alexis Rondeau

Bookmarks

5632 bookmarks · page 102 of 226

Bookmarked from Adam Grant @AdamMGrant

Closure is a myth. Grief doesn't evaporate—it waxes and wanes.

The purpose of grief is not to cause pain. It's to keep memories of loved ones alive and remind us to make the most of our time.

Moving forward after loss is not about erasing sorrow. It's about gaining perspective.

Bookmarked from Tim Urban @waitbutwhy

Our fishy ancestors evolved lungs and bony fins, not for living on land but for life in the waters of Devonian swamps. They evolved bony fins to help push them through the think swamp mud. Because the waters they lived in tended to be a bit low on oxygen, their gills mutated into primitive lungs that could supplement their oxygen intake with the occasional gulp of air at the water's surface. These changes happened to also give them the ability to briefly scurry across land to evade a predator or move to a different swamp. Over millions of years, these little excursions got longer and longer until they had come to live entirely on land.

Later, some of their descendants would do the same thing in the opposite direction. Whales and dolphins evolved from four-legged galloping dog-like animals. They developed a big enough lung capacity that they could take little excursions into the water to hunt prey. Over millions of years, their lung capacity grew and their excursions got so long they came to live entirely underwater, only needing to rise to the surface for air. Whales are currently in the equivalent stage our fishy ancestors were when they could spend a lot of time on land but still had to return to the water here and there. Perhaps, in a few more million years, whales will have completed their transition, modifying their lungs back into gills and no longer needing to come to the surface at all.

By the way, fish all swim by oscillating their bodies from side to side. But whales and dolphins swim in an up and down motion—a remnant of their past as land gallopers.

Bookmarked from Alison Fisk @AlisonFisk

#FindsFriday

Beautiful Mesolithic baskets so well-preserved they look modern rather than made by hunter-gatherers some 9,500 years ago! 🤯

A rare glimpse of ancient crafts used by people long ago that are still in use today!

When they were found in the 19th century, inside the Cave of Los Murciélagos (Cave of bats) in southern Spain, their near-complete state of preservation (due to arid environmental conditions in the cave), caused their authenticity to be doubted. In the 1970s carbon-14 dating showed they were ancient. A recent study shows they’re even older! Read the study here: science.org/doi/10.1126/sc…

Museo Arqueológico Nacional, Madrid 📷 by me

#Archaeology