Setting the scene: Lunch block has actually JUST ended, about 10 minutes ago. One of my students, whose seat is about 1 meter from where I sit, is blatantly on his phone for more than just the quick-glance-type of texting.He might be composing a full-on fanfiction for the amount of effort and focus it is taking.

Me: Dude, put your phone away, this is important.

*student fakes putting phone away but continues to text obviously on lap, which I observe with growing incredulity as a few more moments pass*

Me, making eye contact: Put it away.

Student: *loud aggravated sigh* but I have to take care of something BEFORE the end of the school day and I don’t have any free blocks.


First eukaryotes found without a normal cellular power supply
Microbe living in chinchilla guts jettisoned its mitochondria

You can’t survive without mitochondria, the organelles that power most human cells. Nor, researchers thought, can any other eukaryotes—the group of organisms we belong to along with other animals, plants, fungi, and various microscopic creatures. But a new study has identified the first eukaryote that has ditched its mitochondria, suggesting that our branch on the tree of life may be more versatile than researchers thought.

“This is a discovery of fundamental importance,” says evolutionary biologist Eugene Koonin of the National Center for Biotechnology Information in Bethesda, Maryland, who wasn’t connected to the study. “We now know that eukaryotes can live happily without any remnant of the mitochondria.”

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