A fresh and accessible approach to an important scientific concept.

ONE IGUANA, TWO IGUANAS

A STORY OF ACCIDENT, NATURAL SELECTION, AND EVOLUTION

From the How Nature Works series

The evolution of iguanas in the Galápagos provides a striking example of the workings of natural selection.

This entry in the How Nature Works series explains how scientists have determined that two surprisingly different species evolved from a single ancestor. Collard’s smoothly written text introduces two kinds of iguanas now living on these islands: a prickly pear–eating land iguana and a marine iguana that feeds on green algae underwater. He goes on to describe the volcanic origin of the archipelago and how plants and animals arrived. Drawing on well-grounded scientific conjecture (described in one of six informative sidebars), he then imagines the arrival of the first ctenosaur from Central America 8.25 million years ago and, after 3.75 million more years, the evolution of its algae-eating descendent. He introduces the theory of natural selection and, in another sidebar, explains how genes and their alleles contribute to individual differences. Returning to the continuing evolution of these two species, he shows how each has become perfectly adapted to its habitat. Finally he touches on other unique Galápagos inhabitants and the development of the theory of natural selection. A helpful map locates the Galápagos; images of its reptiles, birds, sea lions, and scenery will help readers picture the setting today. The attractive design makes good use of these well-reproduced photographs, some taken by the author.

A fresh and accessible approach to an important scientific concept. (glossary, suggestions for further research, author’s note) (Nonfiction. 9-13)

Pub Date: Dec. 4, 2018

ISBN: 978-0-88448-649-7

Page Count: 48

Publisher: Tilbury House

Review Posted Online: Oct. 28, 2018

Kirkus Reviews Issue: Nov. 15, 2018

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Contentwise, an arbitrary assortment…but sure to draw fans of comics, of science, or of both.

FLASH FACTS

Flash, Batman, and other characters from the DC Comics universe tackle supervillains and STEM-related topics and sometimes, both.

Credited to 20 writers and illustrators in various combinations, the 10 episodes invite readers to tag along as Mera and Aquaman visit oceanic zones from epipelagic to hadalpelagic; Supergirl helps a young scholar pick a science-project topic by taking her on a tour of the solar system; and Swamp Thing lends Poison Ivy a hand to describe how DNA works (later joining Swamp Kid to scuttle a climate-altering scheme by Arcane). In other episodes, various costumed creations explain the ins and outs of diverse large- and small-scale phenomena, including electricity, atomic structure, forensic techniques, 3-D printing, and the lactate threshold. Presumably on the supposition that the characters will be more familiar to readers than the science, the minilectures tend to start from simple basics, but the figures are mostly both redrawn to look more childlike than in the comics and identified only in passing. Drawing styles and page designs differ from chapter to chapter but not enough to interrupt overall visual unity and flow—and the cast is sufficiently diverse to include roles for superheroes (and villains) of color like Cyborg, Kid Flash, and the Latina Green Lantern, Jessica Cruz. Appended lists of websites and science-based YouTube channels, plus instructions for homespun activities related to each episode, point inspired STEM-winders toward further discoveries.

Contentwise, an arbitrary assortment…but sure to draw fans of comics, of science, or of both. (Graphic nonfiction. 9-12)

Pub Date: Feb. 2, 2021

ISBN: 978-1-77950-382-4

Page Count: 160

Publisher: DC

Review Posted Online: Jan. 13, 2021

Kirkus Reviews Issue: Feb. 1, 2021

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Like oil itself, this is a book that needs to be handled with special care.

OIL

In 1977, the oil carrier Exxon Valdez spilled 11 million gallons of oil into a formerly pristine Alaskan ocean inlet, killing millions of birds, animals, and fish. Despite a cleanup, crude oil is still there.

The Winters foretold the destructive powers of the atomic bomb allusively in The Secret Project (2017), leaving the actuality to the backmatter. They make no such accommodations to young audiences in this disturbing book. From the dark front cover, on which oily blobs conceal a seabird, to the rescuer’s sad face on the back, the mother-son team emphasizes the disaster. A relatively easy-to-read and poetically heightened text introduces the situation. Oil is pumped from the Earth “all day long, all night long, / day after day, year after year” in “what had been unspoiled land, home to Native people // and thousands of caribou.” The scale of extraction is huge: There’s “a giant pipeline” leading to “enormous ships.” Then, crash. Rivers of oil gush out over three full-bleed wordless pages. Subsequent scenes show rocks, seabirds, and sea otters covered with oil. Finally, 30 years later, animals have returned to a cheerful scene. “But if you lift a rock… // oil / seeps / up.” For an adult reader, this is heartbreaking. How much more difficult might this be for an animal-loving child?

Like oil itself, this is a book that needs to be handled with special care. (author’s note, further reading) (Informational picture book. 9-12)

Pub Date: March 31, 2020

ISBN: 978-1-5344-3077-8

Page Count: 40

Publisher: Beach Lane/Simon & Schuster

Review Posted Online: Nov. 24, 2019

Kirkus Reviews Issue: Dec. 15, 2019

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