PARASITIC PLANT HAS EDGE IN EVOLUTIONARY ARMS RACE

Originally in ScienceConnected The relationship between a parasite and its host can be a contentious one. Their interests are in direct conflict with one another, so each is always trying to circumvent the other’s plan. This is often thought of as an evolutionary “arms race.” In this ongoing competition, a parasite evolves a more efficient … Continue reading PARASITIC PLANT HAS EDGE IN EVOLUTIONARY ARMS RACE

Curiosity Finds Weird Oxygen Fluctuations on Mars

For the last six years, NASA’s Curiosity rover has been sampling the air on Mars. At regular intervals, curiosity takes a “breath” of Martian atmosphere. These air samples do not travel through a nose into a pair of lungs, but instead into an onboard lab called the Sample Analysis at Mars (SAM). Instruments within SAM … Continue reading Curiosity Finds Weird Oxygen Fluctuations on Mars

How Many Times can a Clone Be Cloned?

"How many times can you clone a clone?" she asked, "Is that even possible?" The rest of the class was filing out of the classroom, but one student stood in front of me trying to get my attention. This was a BIO 101 class and we had finished a discussion on biotechnology two minutes prior. … Continue reading How Many Times can a Clone Be Cloned?

Magnetoreception: How to Travel the World

In the early days of sailing, merchants would pilot ships around the Mediterranean carrying goods for trade. Early sailors would follow coastlines from port to port for their livelihoods. Navigation into open water was tricky. When land was not visible, one had to rely on celestial cues for positioning. In open water, the only landmarks … Continue reading Magnetoreception: How to Travel the World

Brood Parasites

Nature is full of cheaters. Competition for key survival resources is fierce and costly, so it is no surprise to see scroungers and freeloaders attempting to subvert competition. Parental care provides significant survival advantage and is a valuable and costly resource. It is a trait that evolves in a population that can pay that cost. … Continue reading Brood Parasites