natural selection

Book review – Imperfection: A Natural History

8-minute read
keywords: evolutionary biology

This is the second of a two-part review where I am revisiting the idea that evolution by natural selection is not a process that will always result in perfect adaptations. I first touched on this back in 2019 when reviewing Daniel S. Milo’s Good Enough which, as per its title, argued that evolution does not care for perfection: good enough to survive will do just nicely. Having previously reviewed Andy Dobson’s witty Flaws of Nature, I am now turning to Telmo Pievani’s Imperfection: A Natural History which offers an altogether more erudite take on the topic.

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Book review – Flaws of Nature: The Limits and Liabilities of Natural Selection

7-minute read
keywords: evolution, popular science

Back in 2019, I reviewed Daniel S. Milo’s book Good Enough which was a critique of adaptationist storytelling. For organisms to survive, evolution by natural selection does not, and need not always result in perfect adaptations. Here, I revisit this topic with a double review of, first, Andy Dobson’s Flaws of Nature and, next, Telmo Pievani’s Imperfection. There is plenty more to this thought-provoking idea and Dobson will reel you right in: “It’s evolution, but not the Greatest Hits” (p. 16).

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Book review – The Evolutionary Origins of Life and Death

9-minute read
keywords: abiogenesis, cell biology, evolutionary biology

In this second foray into the biology of death, I will examine programmed cell death or PCD. You might have heard of the process of apoptosis, but, as the previously reviewed The Biology of Death mentioned, this is just one of many ways in which cells can actively kill themselves. It is a vital part of life in multicellular organisms, for instance sculpting our hands so that we are not born with webs of skin between our fingers, or allowing leaves to fall from the trees in autumn by triggering cell death in so-called abscission zones. These are small sacrifices to serve the larger organism. Surprisingly, single-celled (unicellular) organisms also show PCD. But wait, is that not tantamount to suicide? How did that evolve?

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Book review – Free Agents: How Evolution Gave Us Free Will

9-minute read
keywords: evolutionary biology, neurobiology, philosophy

Despite millennia of arguments, the question of whether we have free will or not remains unresolved. Last year October, two neurobiologists stepped into the fray, giving me the chance to dip my toes into the free-will debate. I just reviewed Robert Sapolsky’s Determined which presented a case against. Though successfully showing that we have less of it than we think, I remain unconvinced by his total rejection of free will. For the second half of this two-part review, I turn to Kevin J. Mitchell’s Free Agents which, also starting from neurobiology, presents a tightly argued and compelling case in favour.

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Book review – Wallace, Darwin, and the Origin of Species

9-minute read
keywords: evolutionary biology, history of science

Having just reviewed James T. Costa’s biography of Victorian naturalist Alfred Russel Wallace, I was keen to read more about one of the most remarkable episodes in the history of science: how two scholars independently hit on the same idea and how history has largely forgotten one of them. Wallace, Darwin, and the Origin of Species brings together many lines of evidence and analysis to argue that Wallace deserves recognition on the same footing as Charles Darwin as the co-discoverer of evolution by natural selection. This is a companion book to On the Organic Law of Change, presenting an analysis of this crucial notebook that Wallace kept during his travels around the Malay archipelago. Hence, you are getting a two-for-one as this review continues the previous one.

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Book review – A Natural History of the Future: What the Laws of Biology Tell Us About the Destiny of the Human Species

7-minute read
keywords: conservation biology, ecology, evolutionary biology

When considering environmental issues, the usual rallying cry is that of “saving the planet”. Rarely do people acknowledge that, rather, it is us who need saving from ourselves. We have appropriated ever-larger parts of Earth for our use while trying to separate ourselves from it, ensconced in cities. But we cannot keep the forces of life at bay forever. In A Natural History of the Future, ecologist and evolutionary biologist Rob Dunn considers some of the rules and laws that underlie biology to ask what is in store for us as a species, and how we might survive without destroying the very fabric on which we depend.

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Book review – A Series of Fortunate Events: Chance and the Making of the Planet, Life, and You

7-minute read
keywords: evolutionary biology

Every one of us is here through a long string of happy accidents that might just as well not have happened. That is the contention behind A Series of Fortunate Events, a short and snappy book by evolutionary biologist Sean B. Carroll. Examining planetary events, evolution, and our personal lives and deaths—and introducing one remarkable French biologist—it read like an appetizer that left me wanting to explore this topic further.

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Book review – Otherlands: A World in the Making

7-minute read
keywords: paleontology

Our planet has been many different worlds over its 4.5-billion-year history. Imagining what they were like is hard—with our limited lifespan, deep time eludes us by its very nature. Otherlands, the debut of Scottish palaeontologist Thomas Halliday, presents you with a series of past worlds. Though this is a non-fiction book thoroughly grounded in fact, it is the quality of the narrative that stands out. Beyond imaginative metaphors to describe extinct lifeforms, some of his reflections on deep time, taxonomy, and evolution are simply spine-tingling.

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Book review – Observing Evolution: Peppered Moths and the Discovery of Parallel Melanism

7-minute read
keywords: evolutionary biology

Every student of evolution will be familiar with the peppered moth, Biston betularia. It is right up there with the Galápagos finches as an example of evolution happening right under our noses. The story of the rapid spread of dark moths in response to the soot deposition that accompanied the Industrial Revolution, and the reversal of this pattern when air pollution abated, is iconic. Yet, as Emeritus Professor of biology Bruce S. Grant shows, there are a lot more subtleties to it than my one-liner suggests. Observing Evolution details research by himself and many others, and along the way addresses criticism—legitimate and otherwise—levelled at some of the earlier research. Eminently readable, this is a personal story of the rise, fall, and ultimate redemption of one of the most famous textbook examples of evolution in action.

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Book review – The Cheating Cell: How Evolution Helps Us Understand and Treat Cancer

7 -minute read

Fifty years ago, US President Richard Nixon declared a “war on cancer” when he signed the National Cancer Act. Despite fantastic progress on some fronts, overall it is clear that we are not winning this battle. Cancer remains one of the leading causes of human mortality. But what if the tired war-metaphor is getting it all wrong? Brimming with thought-provoking questions, The Cheating Cell looks at cancer through an evolutionary lens and forces the reader to radically reconsider cancer; not as a bug, but as a feature of life.

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