Other displaced teachers were whizzing by, arms laden with boxes of their own.

An eerie whizzing sound followed by a big boom startled Kenyan villagers relaxing recently one afternoon with family and friends.

And it may compound other urban stressors, like whizzing traffic and rat poison.

For some animals, like genetically isolated mountain lions in Southern California’s Santa Monica and Santa Ana mountains, safe passage across whizzing freeways and concrete landscapes could stave off an extinction vortex.

A vision to provide safe passage for mountain lions above 10 lanes of whizzing traffic near Los Angeles faced a foe: time.