Commentary

The Mediterranean’s drying out 5.5 million years ago, known as the Messinian salinity crisis, is the biggest extinction event suffered by the Earth since the meteorite that wiped out the flightless dinosaurs and ended the Mesozoic era 65 million years ago. No one knows yet how long it will take for marine life to recover from the kind of global-scale change that is currently underway.

The acts that apparently led Israel to strike Hezbollah are also illegal under international law. Hezbollah, a nonstate armed group supported by Iran, has no right to use violence of any kind, let alone missile strikes targeting civilians in northern Israel. But under law, hiding explosives in everyday objects makes them booby traps – and in almost every case, using a booby trap designed to kill is a crime.

In contrast to foraging and hunting – behaviors with clearly defined goals – play is undirected. When a pony frolics in a field, a dog wrestles with a stick or chimpanzees chase each other, they act with no goal in mind. But an animal at play is far more likely to innovate – and some of its innovations may in time be adapted into new ways to forage and hunt.

Most discussions of retirement focus on the financial aspects of leaving the workforce: “How to save enough for retirement” or “How do you know if you have enough money for retirement?” This might not be the biggest problem that potential retirees face. The deeper issues of meaning, relevance and identity that retirement can bring to the fore are more significant to some workers.

Critics of diversity, equity and inclusion programs, commonly referred to by the acronym DEI, are increasingly using boycotts and bans to fight against their use. People often argue that this anti-DEI backlash is motivated by race-neutral concerns – for example, that DEI practices are irrelevant to work performance or are too political. But research suggests that conservative critiques of DEI often boil down to one thing: anti-Black racism.