Science Photo of the Day

I thought it was time to bring back the Science Photo of the Day. Enough time has passed that it won't matter if I accidentally repeat one of the old questions, and I have plenty of new photos to use.

If you are not familiar with the Science Photo of the Day, each day I will post a new photograph with a science question. The photos will be posted here and on my Happy Scientist Facebook page. The next day, I will post the answer, along with a new photo and question.

Some of the questions will be simple, while others may take quite a bit of research to answer. Subscribers are welcome to post your answer in the comments, but they will not appear on this site until I approve them (which cuts down on spam, off topic comments, etc.) If you are not a subscriber, you may post your answer on the Happy Scientist Facebook page.

Science Photo of the Day

New Science Photo of the Day: 12
In 2017, the World Meteorological Organization added 12 new cloud classifications. The diagonal cloud in this photo is one of the new types. What is it?
New Science Photo of the Day: 11
We frequently hear in the news that bees are dying at an alarming rate, which could result in many of our food crops not being pollinated. How factual are those stories?
New Science Photo of the Day: 10
Chickadees have a very unusual adaptation for remembering all of the spots where they hide food for the winter. What is it?
New Science Photo of the Day: 9
This strange insect produces a mating song, even though neither males nor females are able to hear sound. How does that work?
New Science Photo of the Day: 8
Our local Woodhouse's Scrub-Jays (Aphelocoma woodhouseii) have developed quite a taste for peanuts. If you watch the bird after it grabs a peanut, it will fly to a bush, hop to the ground, scratch the dirt, and then fly to another bush and repeat the process. After doing that several times, it returns for another peanut. Why does it do this?