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Inspiring Science

~ Casting light on great ideas

Inspiring Science

Tag Archives: evolution

Speciation in Reverse

07 Monday Apr 2014

Posted by sedeer in Evolution

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Tags

animals, biology, birds, Darwin, evolution, finches, galapagos islands, Popular science, science, speciation

I don’t usually advertise my Accumulating Glitches posts on here, but I decided to make an exception for today’s post. It’s about a relatively straightforward study that raises a host of interesting questions which I thought some of you might find interesting. Here’s an excerpt to give you an idea:

Darwin’s finches have become a textbook example in evolutionary biology, speciating as they adapted to different environments in their spread through the Galapagos islands. In the past two decades, the opposite has been happening on Floreana island in the south of the archipelago, according to a paper published in the journal American Naturalist. The opposite of speciation, however, isn’t necessarily extinction — at least, not in the familiar sense of a species dying out. Another way for speciation to roll backwards is through hybridization, a process that raises many more (and more interesting) questions than ‘straightforward’ extinction.

Click to continue reading on Accumulating Giltches…

Ref
Kleindorfer S, O’Connor JA, Dudaniec RY, Myers SA, Robertson J, & Sulloway FJ (2014). Species collapse via hybridization in Darwin’s tree finches. The American naturalist, 183 (3), 325-41 PMID: 24561597

Beacon: mantis shrimp and more…

26 Wednesday Feb 2014

Posted by sedeer in Blog

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ants, biology, communicating science, crowd funding, evolution, journalism, Kickstarter, mantis shrimp, Popular science, science, science and society, Science journalism, writing

Here’s a taste of what I’ve been writing on Beacon so far. It’s been enormously fun so far, and the focus is a bit different from what I post on here. I’ve got lots of other great story ideas coming up for Beacon; I’m looking forward to researching them and sharing what I find with my subscribers. For now, here are a few excerpts from my first few stories to entice those of you who might be on the fence:

Fit for a Queen
In this short creative nonfiction piece, a young queen sets off into the dangerous world alone. Burdened with her people’s future, she has to persevere in the hope that help will arrive in time. 

The young queen had to find shelter soon. Everything depended on that. Stumbling, she scrambled over the rough ground as she looked for a place to hide — a crevice or even just a protective overhang. She spotted a fissure in the rocks ahead and made for it, a crack just wide enough for her to squeeze through. Safe at last, she slowed down, conserving her energy for the task ahead. Continue reading…

Through Alien Eyes
Mantis shrimp, famous for their lightning-quick punch, also have the most advanced eyes we know about and a fundamentally different approach to vision. Get a glimpse of how they see the world.

If we were designed in God’s image, it’s hard to imagine what model inspired the mantis shrimp, but it must have been pretty impressive. Heavily armoured and formidably armed, these marine crustaceans kill their prey — molluscs, crustaceans, and small fish — with a strike that accelerates as fast as a .22 calibre bullet. They look out at the world with a pair of eyes mounted on stalks which they can move independently, tracking an object with one eye while scanning their surroundings with the other. One researcher described the effect as “most uncrustacean-like, suggesting an almost ‘primate-like’ awareness of their surroundings.” Continue reading…

A Grander View
In a world that’s brimming over with life, we often think of ourselves as somehow special. Join me on a journey of exploration through the lives and evolution of the other creatures on Earth. Along the way, we’ll discover that the living world is infused with a richness of marvels, of which we are just a small part.

It all started with agriculture. Or maybe fire. Or was it the first time we used language? The truth is that I don’t know when it started and I won’t pretend to, but at some point we invented the conceit of human exceptionalism and that myth has grown ever since. It’s infiltrated our language and permeates our thoughts, shaping how we see the world. Seduced by our ingenuity, we imagine ourselves as apart from the rest of the world, elevated above it or at least dominant within it. Continue reading…

Dying for sex

12 Wednesday Feb 2014

Posted by sedeer in Evolution, Mammals

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animals, Behavior, biology, Education, evolution, mating, Popular science, reproduction, science, sex

Unfortunately, I’ve been too busy to attend to Inspiring Science this week. Rather than putting out a rushed post, I decided to republish this piece which I originally wrote for Accumulating Glitches last year. I hope you like it!

(Photo credit: Michael Barritt & Karen May, via Wikimedia Commons)Some spiders get eaten by their mates, and male salmon famously fight to the death for access to females, but we generally don’t think of reproduction being quite as risky for mammals. We may prance and pose or jockey for attention, and mating might even be quite painful, but it’s usually not lethal. Among mammals, “live to mate another day” seems to be the guiding principle. Exceptions to this rule are found in the dasyurids and didelphids, groups of small carnivorous marsupial species living in Australia and South America, respectively. “These species experience extreme sexual behaviour,” said Dr. Diana Fisher of the University of Queensland. Males and females mate with multiple partners and matings can go on for many hours. Afterwards, the males all die. Continue reading →

Talkin’ ’bout Evolution

02 Wednesday Oct 2013

Posted by sedeer in Evolution

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biology, epigenetics, evolution, Human, Popular science, science, virus

Unfortunately, I haven’t had time to write anything for Inspiring Science this week, so instead I decided to link to a few of my recent posts on Accumulating Glitches instead. I wrote two posts, Tracking the Evolution of a Virus and Antibiotics and Applied Evolution, about evolutionary sories which might affect our day-to-day lives; I introducted them saying: Continue reading →

Music, Memory, and Voices

18 Wednesday Sep 2013

Posted by sedeer in Humans

≈ 6 Comments

Tags

biology, evolution, Human, Melody, music, Musical instrument, Popular science, science, Singing, Vocal music

Photo credit: Hannele Luhtasela-el ShowkHumans are remarkably talented musicians. We can recognize a tune despite changes like being slowed down or sped up or even if all of the notes are shifted to a higher or lower pitch. Though these may seem like trivial feats, most other animals can’t manage them. Experiments have shown that six-month old human babies can already distinguish musical pitch and recognize shifted melodies. These exceptional abilities suggest that humans might have some innate capacity to perceive and understand music, something like our hypothetical language faculty. Given that we’ve been able to sing for much longer than we’ve had musical instruments, it seems reasonable that any music capacity we evolved would be more attuned to vocal than instrumental music. Continue reading →

Kickstarter campaign: The Universe Verse

17 Tuesday Sep 2013

Posted by sedeer in Books

≈ 2 Comments

Tags

book, children's book, Coloring book, comic, evolution, Kickstarter, Popular science, Rhyme, Science communication

Universe_VerseLast week I got an email from James Dunbar, an author and illustrator, asking me to promote the Kickstarter campaign for his new book, The Universe Verse.  It’s a series of three rhyming “graphic guides” (i.e., comic) covering the origin of the Universe, the origin of life on Earth, and the evolution of humans. Dunbar describes the books as “scientifically accurate” and “targeted at children and fun-loving adults”.  I got a PDF preview of the book; I didn’t read through the entire thing, but the parts I saw looked engaging and educational.  The rhymes and rhythms did feel a bit forced at times, but that’s hardly surprising — I’m sure it’s not easy to keep that up for three whole books!

Dunbar has already met his initial goal ($10,000), but if the campaign reaches $25,000 he’ll release a coloring-book version of all three books as a free PDF.  I think these books could be a great resource for kids and young adults.  Rhymes, pictures, and a storyline can help make the material more palatable and memorable, and I can see that they would be a wonderful way to get kids interested in and educated about science.  I contributed to the Kickstarter because I’d like to see them become available even to disenfranchised communities.  If you feel the same way, consider chipping in if you can afford it.

Click through to see a couple of sample pages…

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All text and original images by Sedeer El-Showk. Licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

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