The Human Age Read Online Free PDF Page B

Sumatran orangutan populations are sustainable in the long term, unless we can create corridors and protect those areas. There are so many benefits to orangutan corridors—they handle the storm water, they prevent erosion, they produce oxygen, they provide places for orangutans to live. The owners don’t want orangutans near their palm plantations, but if there were functioning corridors, there would be less animal–human conflict.”
    So there’s an Orangutan Awareness program at the Toronto Zoo, with education, outreach, and fund-raising for global orangutan projects. And there’s the signature Apps for Apes program (at twelve zoos thus far) reminding people how much we have in common with the other great apes. When we see an orangutan at his iPad we naturally think, He could be my son, my brother, myself .
    Budi touches a game on his iPad and the screen becomes an extravaganza of flurrying creatures, alive and finning, bubbling and whirling, in an underwater prehistoric world that Budi will never see. Nor will we, for we only know them at a standstill, as uninhabited bones, relics of a previous age as dramatic as our own.

A DIALECT OF STONE
    I ’m wearing a fossil trilobite pendant around my neck right now. Black with prominent ribs in a silver bevel, it resembles a wood louse, and I wonder if it could rolypoly itself and somersault as wood lice do. Mostly, I wonder what its compound eyes saw so long ago. My trilobite is only an inch long, but I’ve held one nearly two feet wide in a neighbor’s private collection, its ribs a xylophone impressive enough to play a tune upon. Trilobites are uncanny instruments of life.
    Millennia before the Pliocene’s celebration of the spine, when grazing quadrupeds roamed, silver birch leaves flickered like tiny salmon, and grebes first hinted at lunacy, trillions of trilobites prowled the ocean floors and paddled mud banks ajell with bacterial slime. In the evolutionary arms race, they grew armor plates, jointed legs, tough, chitinous jaws—anything to beat extinction’s warrant. When they died, they bedded the muzzy swamplands. Today human bone-tumblers ogle their chalky remains, their exquisite herringbone shells. Trying to understand their habits, we sometimes allude to their cousins, the crab, spider, and millipede, and say “adaptive radiation about a common theme.” As if that explained the papery organs within, or all the crises that fed their opportunity.
    The most successful water animal ever embalmed as fossil, trilobites kept refining and upgrading themselves, over three hundred million years, until around twenty thousand different species freewheeled through deep and shallow seas on what must have seemed a trilobite-smitten planet. Some worked as stealthy ocean predators and scavengers, others as mild-mannered plankton-grazers, and still others fell into cahoots with sulfur-eating bacteria. Some developed protruding antlers and crackerjack spines. They scanned their realm with some of the oldest eyes on record, bug-eyed peepers with many lenses that weren’t organic but mineral, made of six-sided crystal calcium prisms. These radically different eyes didn’t provide crisp images but did offer a very wide field of view and motion. When a mass extinction wiped out trilobites 260 million years ago, their ancient lineage yielded to our world of insects with multifaceted eyes. But in their heyday, trilobites trolled the water world, and when they died their calcium carcasses fell to the bottom, crystal eyes and all, where layer upon layer of sediment enshrined them, gluing and compacting their bones with bits of coral and other calcium-cored creatures. Then time stacked its heavy volumes upon them, squeezing out the excess water and leaving behind limestone laced with skeletal remains. Today we use raw limestone in our roads, and grind it for paints and toothpastes—which means we use ancient trilobites, coral, and other fossils to help scrub our mouths.
    That’s