Not necessarily for casual readers, but for the scientifically curious, a challenging book that presents ideas about the...
An evolutionary biochemist argues that while single-cell life emerged early in Earth’s 4-billion-year history, complex life arose only some 2 billion years ago as the result of a rare, even freakish, event.
Lane (Evolutionary Biology/Univ. Coll. London; Life Ascending: The Ten Great Inventions of Evolution, 2009) is known as a writer of popular science, but this is a rigorous work that requires close reading and the ability—and willingness—to tackle and comprehend complex technical processes, such as chemiosmotic coupling and the ATP synthase. The rare event was an endosymbiosis between two single-cell prokaryotes, forming a eukaryote, a complex cell. When this happened, mitochondria formed from the cell that was captured inside the host cell and continued to live in the new organism. The acquisition of mitochondria changed everything, greatly expanding the cell’s genome and volume. Mitochondria contain genes in their DNA that differ from the genes in the cell nucleus and that mutate much faster than those in the nucleus. This high mutation rate lies behind our aging and certain congenital diseases such as cancer. Mitochondria may even have given rise to sex, which is necessary to maintain the function of genes in large genomes. To aid readers, Lane includes line drawings, diagrams, and black-and-white photographs, many with lengthy captions that also require close attention. A helpful glossary provides definitions of technical terms. The author writes with enthusiasm, generously gives credit to other scientists in his field, and freely acknowledges that some of his ideas may be wrong. Curiously, an epilogue reports that in 2010, Japanese scientists found an organism next to a hydrothermal vent in the Pacific Ocean that suggests that perhaps that rare event of 2 billion years ago recently happened once again.
Not necessarily for casual readers, but for the scientifically curious, a challenging book that presents ideas about the most intricate processes that link genes and energy.Pub Date: July 20, 2015
ISBN: 978-0-393-08881-6
Page Count: 352
Publisher: Norton
Review Posted Online: March 31, 2015
Kirkus Reviews Issue: April 15, 2015
Weisman quietly unfolds his sobering cautionary tale, allowing us to conclude what we may about the balancing act that...
Nicely textured account of what the Earth would look like if humans disappeared.
Disaster movies have depicted the State of Liberty poking out from the ground and empty cities overgrown with trees and vines, but what would really happen if, for one reason or another, every single one of us vanished from the planet? Building on a Discover magazine article, Weisman (Journalism/Univ. of Arizona; An Echo in My Blood, 1999, etc.) addresses the question. There are no shocks here—nature goes on. But it is unsettling to observe the processes. Drawing on interviews with architects, biologists, engineers, physicists, wildlife managers, archaeologists, extinction experts and many others willing to conjecture, Weisman shows how underground water would destroy city streets, lightning would set fires, moisture and animals would turn temperate-zone suburbs into forests in 500 years and 441 nuclear plants would overheat and burn or melt. “Watch, and maybe learn,” writes the author. Many of his lessons come from past developments, such as the sudden disappearance of the Maya 1,600 years ago and the evolution of animals and humans in Africa. Bridges will fall, subways near fault lines in New York and San Francisco will cave in, glaciers will wipe away much of the built world and scavengers will clean our human bones within a few months. Yet some things will persist after we’re gone: bronze sculptures, Mount Rushmore (about 7.2 millions years, given granite’s erosion rate of one inch every 10,000 years), particles of everything made of plastic, manmade underground malls in Montreal and Moscow. In Hawaii, lacking predators, cows and pigs will rule.
Weisman quietly unfolds his sobering cautionary tale, allowing us to conclude what we may about the balancing act that nature and humans need to maintain to survive.Pub Date: July 10, 2007
ISBN: 978-0-312-34729-1
Page Count: 304
Publisher: Dunne/St. Martin's
Review Posted Online: May 19, 2010
Kirkus Reviews Issue: May 1, 2007
PERSPECTIVES
Ackerman writes with a light but assured touch, her prose rich in fact but economical in delivering it. Fans of birds in all...
Science writer Ackerman (Ah-Choo!: The Uncommon Life of Your Common Cold, 2010, etc.) looks at the new science surrounding avian intelligence.
The takeaway: calling someone a birdbrain is a compliment. And in any event, as Ackerman observes early on, “intelligence is a slippery concept, even in our own species, tricky to define and tricky to measure.” Is a bird that uses a rock to break open a clamshell the mental equivalent of a tool-using primate? Perhaps that’s the wrong question, for birds are so unlike humans that “it’s difficult for us to fully appreciate their mental capabilities,” given that they’re really just small, feathered dinosaurs who inhabit a wholly different world from our once-arboreal and now terrestrial one. Crows and other corvids have gotten all the good publicity related to bird intelligence in recent years, but Ackerman, who does allow that some birds are brighter than others, points favorably to the much-despised pigeon as an animal that “can remember hundreds of different objects for long periods of time, discriminate between different painting styles, and figure out where it’s going, even when displaced from familiar territory by hundreds of miles.” Not bad for a critter best known for bespattering statues in public parks. Ackerman travels far afield to places such as Barbados and New Caledonia to study such matters as memory, communication, and decision-making, the last largely based on visual cues—though, as she notes, birds also draw ably on other senses, including smell, which in turn opens up insight onto “a weird evolutionary paradox that scientists have puzzled over for more than a decade”—a matter of the geometry of, yes, the bird brain.
Ackerman writes with a light but assured touch, her prose rich in fact but economical in delivering it. Fans of birds in all their diversity will want to read this one.Pub Date: April 12, 2016
ISBN: 978-1-59420-521-7
Page Count: 336
Publisher: Penguin Press
Review Posted Online: Feb. 16, 2016
Kirkus Reviews Issue: March 1, 2016
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