Females Who Choose Their Mates Care More About Their Offspring — In Bird Populations, Anyway
The lady birds in the “arranged marriage” group were less interested in hooking up with their partners, and were more likely to abandon their eggs.
Dating is a wonderfully terrible pastime, filled with boredom, rejection, and cycles of hope and heartbreak. In order to better understand the mystery behind human dating and mate selection, scientists looked to the birds (curiously, not the bees).
Researchers Malika Ihle, Bart Kempenaers, and Wolfgang Forstmeier published in the Public Library of Science, Cambridge, a study in which zebra finches were split into two groups: ones that were allowed to choose their mates, and ones that had their mates chosen for them. In the group that chose their mates, the offspring had a much higher survival rate than those in the other group. The lady birds in the “arranged marriage” group were less interested in hooking up with their partners, and were more likely to abandon their eggs. The takeaway is that when we get to choose our mate, we are more likely to continue our species. It matters less whether we’re genetically compatible and matters more whether we, well, like you.
On the other hand, having too many dating choices can make us shallow.
Upstreamism advocate Rishi Manchanda calls us to understand health not as a "personal responsibility" but a "common good."
- Upstreamism tasks health care professionals to combat unhealthy social and cultural influences that exist outside — or upstream — of medical facilities.
- Patients from low-income neighborhoods are most at risk of negative health impacts.
- Thankfully, health care professionals are not alone. Upstreamism is increasingly part of our cultural consciousness.
The Bajau people's nomadic lifestyle has given them remarkable adaptions, enabling them to stay underwater for unbelievable periods of time. Their lifestyle, however, is quickly disappearing.
- The Bajau people travel in small flotillas throughout the Phillipines, Malaysia, and Indonesia, hunting fish underwater for food.
- Over the years, practicing this lifestyle has given the Bajau unique adaptations to swimming underwater. Many find it straightforward to dive up to 13 minutes 200 feet below the surface of the ocean.
- Unfortunately, many disparate factors are erasing the traditional Bajau way of life.
We explore the history of blood types and how they are classified to find out what makes the Rh-null type important to science and dangerous for those who live with it.
- Fewer than 50 people worldwide have 'golden blood' — or Rh-null.
- Blood is considered Rh-null if it lacks all of the 61 possible antigens in the Rh system.
- It's also very dangerous to live with this blood type, as so few people have it.
An innovation may lead to lifelike evolving machines.
- Scientists at Cornell University devise a material with 3 key traits of life.
- The goal for the researchers is not to create life but lifelike machines.
- The researchers were able to program metabolism into the material's DNA.
SMARTER FASTER trademarks owned by The Big Think, Inc. All rights reserved.