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Biological Do Birds of a Feather Flock Together?

Ancient DNA Reveals Elephant Birds and Kiwi are Sister Taxa and Clarifies Ratite Bird Evolution.  Mitchell et al.

The species we see on earth today have been shaped by millions of years of evolution. Over great periods of time, species often change and adapt in response to environmental cues and constraints. One of the...

annotations posted 11/26/2014
original paper published 05/23/2014

Biological Implanting false memories
Creating a False Memory in the Hippocampus. Ramirez et al.
 
The brain is plastic and processes information from the surroundings by coordinating activities between different regions. Research has shown that the neurons in the hippocampus are involved in the formation of...

annotations posted 11/13/2014
original paper published 07/26/2013

Physical Black holes and galaxies...having a blast together
Radio Jets Clearing the Way Through a Galaxy: Watching Feedback in Action. Morganti et al.
 
Supermassive black holes exist at the center of galaxies, often weighing more than one billion times as much as the sun.  What forces could connect the mass of a galaxy to the mass of...

annotations posted 11/07/2014
original paper published 09/06/2013

Biological Jumping Genes!
Dosage Compensation via Transposable Element Mediated Rewiring of a Regulatory Network.  Ellison and Bachtrog
 
Barbara McClintock's discovery of transposons, mobile genetic elements, took a while to become widely accepted by the scientific community. This study, investigating...

annotations posted 11/07/2014
original paper published 10/10/2014

Biological Do you remember being born?
Hippocampal Neurogenesis Regulates Forgetting During Adulthood and Infancy.  Akers et al.
 
Why do we have so much trouble remembering our own infancy? This phenomenon, known as infantile amnesia, occurs in humans as well as many animal species. Does the synthesis of...

annotations posted 10/20/2014
original paper published 09/26/2014

Physical Chemical Reactions Up Close
Direct Imaging of Covalent Bond Structure in Single-Molecule Chemical Reactions de Oteyza et al. 
 
How exactly do chemicals react? How do molecules break and form new bonds? How do we know what the products of chemical reactions look like? In this study, the organic hydrocarbon, phenylene-1,2-ethynylene (C26H14) is visualized at the...

annotations posted 09/11/2014
original paper published 09/12/2014

Biological New Neurons Stand Out From the Crowd
Emergence of Individuality in Genetically Identical Mice
Freund et al.
 
We have noticed for a long time that identical twins, who share the same genes and grew up in the same family, do not act exactly the same. But, since we also know that our environment and genetic makeup influence how our bodies and brains develop, where do...

annotations posted 09/11/2014
original paper published 08/29/2014

Biological Deep Clean Your Brain in One Easy Step!
Sleep Drives Metabolite Clearance from the Adult Brain.  Xie et al.
 
The brain is highly metabolically active and produces waste which must be removed before it accumulates and begins to harm the brain. This paper links sleep with the removal of these dangerous metabolic by-products. The authors inject fluorescent dyes into the cerebrospinal fluid (CSF) of...

annotations posted 09/11/2014
original paper published 07/25/2014

Biological Cracking the Armor
Crocodile Head Scales Are Not Developmental Units But Emerge from Physical Cracking.  Milinkovitch et al.   
 
One of a crocodile’s most characteristic traits is its thick, scaly skin. Although similar in appearance to elaborately patterned skin of other reptiles, the scales on...

annotations posted 07/28/2014
original paper published 06/27/2014

Biological Can DNA Enhance Your Look?
Fine Tuning of Craniofacial Morphology by Distant-Acting Enhancers.  Attanasio et al.   
 
We’re all familiar the adage that no two faces are alike. But, how is this tremendous amount of variation possible? Using genetic tools and three-dimensional imaging, this paper makes the...

annotations posted 09/04/2014
original paper published 05/30/2014

Pages

Biological Do Birds of a Feather Flock Together?

Ancient DNA Reveals Elephant Birds and Kiwi are Sister Taxa and Clarifies Ratite Bird Evolution.  Mitchell et al.

The species we see on earth today have been shaped by millions of years of evolution. Over great periods of time, species often change and adapt in response to environmental cues and constraints. One of the...

annotations posted 11/26/2014
original paper published 05/23/2014

Biological Implanting false memories
Creating a False Memory in the Hippocampus. Ramirez et al.
 
The brain is plastic and processes information from the surroundings by coordinating activities between different regions. Research has shown that the neurons in the hippocampus are involved in the formation of...

annotations posted 11/13/2014
original paper published 07/26/2013

Physical Black holes and galaxies...having a blast together
Radio Jets Clearing the Way Through a Galaxy: Watching Feedback in Action. Morganti et al.
 
Supermassive black holes exist at the center of galaxies, often weighing more than one billion times as much as the sun.  What forces could connect the mass of a galaxy to the mass of...

annotations posted 11/07/2014
original paper published 09/06/2013

Biological Jumping Genes!
Dosage Compensation via Transposable Element Mediated Rewiring of a Regulatory Network.  Ellison and Bachtrog
 
Barbara McClintock's discovery of transposons, mobile genetic elements, took a while to become widely accepted by the scientific community. This study, investigating...

annotations posted 11/07/2014
original paper published 10/10/2014

Biological Do you remember being born?
Hippocampal Neurogenesis Regulates Forgetting During Adulthood and Infancy.  Akers et al.
 
Why do we have so much trouble remembering our own infancy? This phenomenon, known as infantile amnesia, occurs in humans as well as many animal species. Does the synthesis of...

annotations posted 10/20/2014
original paper published 09/26/2014

Physical Chemical Reactions Up Close
Direct Imaging of Covalent Bond Structure in Single-Molecule Chemical Reactions de Oteyza et al. 
 
How exactly do chemicals react? How do molecules break and form new bonds? How do we know what the products of chemical reactions look like? In this study, the organic hydrocarbon, phenylene-1,2-ethynylene (C26H14) is visualized at the...

annotations posted 09/11/2014
original paper published 09/12/2014

Biological New Neurons Stand Out From the Crowd
Emergence of Individuality in Genetically Identical Mice
Freund et al.
 
We have noticed for a long time that identical twins, who share the same genes and grew up in the same family, do not act exactly the same. But, since we also know that our environment and genetic makeup influence how our bodies and brains develop, where do...

annotations posted 09/11/2014
original paper published 08/29/2014

Biological Deep Clean Your Brain in One Easy Step!
Sleep Drives Metabolite Clearance from the Adult Brain.  Xie et al.
 
The brain is highly metabolically active and produces waste which must be removed before it accumulates and begins to harm the brain. This paper links sleep with the removal of these dangerous metabolic by-products. The authors inject fluorescent dyes into the cerebrospinal fluid (CSF) of...

annotations posted 09/11/2014
original paper published 07/25/2014

Biological Cracking the Armor
Crocodile Head Scales Are Not Developmental Units But Emerge from Physical Cracking.  Milinkovitch et al.   
 
One of a crocodile’s most characteristic traits is its thick, scaly skin. Although similar in appearance to elaborately patterned skin of other reptiles, the scales on...

annotations posted 07/28/2014
original paper published 06/27/2014

Biological Can DNA Enhance Your Look?
Fine Tuning of Craniofacial Morphology by Distant-Acting Enhancers.  Attanasio et al.   
 
We’re all familiar the adage that no two faces are alike. But, how is this tremendous amount of variation possible? Using genetic tools and three-dimensional imaging, this paper makes the...

annotations posted 09/04/2014
original paper published 05/30/2014

Pages