Marilyn sez, "Until 375,000 years ago, plants had be by physically close to each other in order to reproduce. Pollen changed all that. From the article by Rob Dunn in the Dec. issue of National Geographic:"
Update: not sure about Marylin's source for the 375k year stat above, but it looks like pollen is at least as old as the late Devonian
In the 300,000 pollen-bearing plant species on Earth, there are 300,000 different forms of pollen. The great variety in colors, shapes, and textures of the grains has evolved in accordance with each plant's biological particulars. Beetle-pollinated plants tend to have smooth, sticky pollen, the better to adhere to the lumbering beetles' backs. Plants pollinated by fast-moving bees or flies may have spiny pollen that lodges easily between the insects' hairs. Plants pollinated by bigger animals, such as bats, sometimes have bigger pollen, though not always -- perhaps not even most of the time. In the details of pollen's variety, more remains to be explained than is understood.
A friend with allergies once compared living through high-pollen-count days as "being the involuntary star in a vegetage-kingdom bukkake movie." I haven't been able to think of pollen the same way since.
Love Is in the Air
The Breitbart chief and Trump campaign CEO’s sexist bullying was evident in the early days of Biosphere 2 in Arizona, then a quasi “space colonization” and environmental research project. Stephen K. Bannon, who recently took a leave from running Breitbart.com to become Donald Trump’s chief campaign executive, once bullied women in the historic environmental research […]
Jesse Singal requested this shoop, and I delivered. After all, who’s downloading pirated papers? Everyone. (I’ve uploaded this to Redbubble if you’d like a poster—of course, you can just as well pirate it.)
Hydraulic Press Channel shows why carbon fiber and variants like carbon nanotubes have so many uses: depending on the configuration, they can hold up against the hydraulic press.
These days, the vape market is saturated with low-quality products, making it nearly impossible to separate the gems from the duds. The Atmos Rx Dry Herb Vaporizer stands out from crowd for two reasons: its impressive battery life and durable construction. This high-end little gadget is compact enough to fit in your pocket, and packs a powerful punch, […]
If you’re like us, you occasionally get ambitious with your dinner and try to cook multiple sides plus a main dish. These efforts usually end as a cold meal plus a pile of dishes to wash. MasterPan Multi-Sectional Meal Skillet makes it super easy to make multiple dishes at once without the hassle. This heavy gauge bottom pan […]
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