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tag finches developmental biology evolution

Hybrid Animals Are Not Nature’s Misfits
Ashley Yeager | May 1, 2021 | 8 min read
In the 20th century, animals such as mules and ligers that had parents of different species were considered biological flukes, but genetic sequencing is beginning to unravel the critical role of hybridization in evolution.
A pair of zebra finches in a cage
Animal Divorce: When and Why Pairs Break Up
Catherine Offord | Jun 1, 2022 | 10+ min read
Many species of birds and other vertebrates form pair bonds and mate with just one other individual for much of their lives. But the unions don’t always work out. Scientists want to know the underlying factors.
Close up photo of a wing
Unearthing the Evolutionary Origins of Insect Wings
Jef Akst | Apr 4, 2022 | 6 min read
A handful of new studies moves the needle toward a consensus on the long-disputed question of whether insect wings evolved from legs or from the body wall, but the devil is in the details.
An illustration of green bacteria floating above neutral-colored intestinal villi
The Inside Guide: The Gut Microbiome’s Role in Host Evolution
Catherine Offord | Jul 1, 2021 | 10+ min read
Bacteria that live in the digestive tracts of animals may influence the adaptive trajectories of their hosts.
Gene controls beak morphology
Maria Anderson(manderson@the-scientist.com) | Sep 2, 2004 | 3 min read
Scientists have pinpointed a molecular basis for size variations in the beaks of Galapagos finches', a phenomenon observed by Charles Darwin more than a century and a half ago.In this week's issue of Science, Harvard University developmental biologist Cliff Tabin and colleagues identified bone morphogenetic protein (Bmp)-4 as a key player in the pathway controlling avian beak development. His team includes Peter and Rosemary Grant, whose research endeavors on the islands were recorded in Jonatha
Speaking of Science
The Scientist | Sep 1, 2014 | 2 min read
September 2014's selection of notable quotes
Conceptual image of an embryo with sound waves
Embryonic Eavesdropping: How Animals Hear and Respond to Sound
Amanda Heidt | Nov 1, 2021 | 10+ min read
Recent findings buck the traditional idea that embryos are passive agents and instead suggest that by tuning into vibrations, organisms can better prepare to enter the outside world.
Should Evolutionary Theory Evolve?
Bob Grant | Jan 1, 2010 | 10+ min read
By Bob Grant Should Evolutionary Theory Evolve? Some biologists are calling for a rethink of the rules of evolution. Evolution, by its very nature, is a dynamic process. But just as fluid are humankind’s efforts to understand, describe, and conceptualize that process. Out went Lamarck, in came Darwin. Mendel’s insights set the rules for genetic inheritance, then certain exceptions to Mendel’s rules materialized. So forth
Foresight
Karen Hopkin | Jul 1, 2011 | 9 min read
Studying the earliest events in visual development, Carla Shatz has learned the importance of looking at one’s data with open eyes—and an open mind.
The Genetics of Society
Claire Asher and Seirian Sumner | Jan 1, 2015 | 10 min read
Researchers aim to unravel the molecular mechanisms by which a single genotype gives rise to diverse castes in eusocial organisms.

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