Showing posts with label nature. Show all posts
Showing posts with label nature. Show all posts
Tuesday, June 29, 2021
Friday, June 25, 2021
Wednesday, June 16, 2021
Sunday, May 16, 2021
Today's New Thing
Stuff that fascinates me.
Sunday, April 25, 2021
We're In It Now
I'll say it again:
This is not about saving the planet. The planet is fine, and may well be in the process of solving its own problem by eliminating humans.
This is about saving ourselves.
Thursday, April 22, 2021
Today's Critters
I could spend a good long time thinking about it, and not come up with anything worse than dead hippo farts.
Thursday, April 15, 2021
Tuesday, March 16, 2021
Singing
Where do you supposed we humans got our ideas about music as a way to communicate?
Thursday, February 25, 2021
Today's Video
Wild animals are not to be fucked with - they are to be respected and admired from a distance.
But damn - it's hard to resist the urge to just wade right in.
Let's be careful out there.
Monday, October 19, 2020
A Predator
Lacrymaria Olor on a successful hunt.
Lacrymaria olor is a species of ciliates, typically 100 micrometres (0.10 mm) long, that is found in freshwater ponds. Its name means "swan tear" in Latin, and refers to its general shape: namely, a teardrop-shaped cell with a small "head" at the end of a long slender "neck". The protist is notable for its ability to extend the anterior end of the cell up to 7 times its body length, and manipulate in many directions — even around obstacles — in order to capture its food. For that reason it is a popular subject for amateur microscopists. The classification has been attributed to Müller (1786).
The protist usually has two macronuclei and a single micronucleus. Its entire cell body is covered with cilia arranged in spirals. It has two contractile vacuoles, one at each end of the body. It contains small birefringent crystals.
Lacrymaria olor can be easily reproduced in vitro, but cultivated populations are difficult to maintain for long. It can reproduce sexually, with each individual assuming either of two mating types ("sexes") at various times of the day. It can also reproduce asexually, possibly after an internal rearrangement of its genome; but there is evidence that this mechanism stops working after a certain number of consecutive asexual generations. It can also regenerate a new head within minutes, if the original is cut off.
Lacrymaria feed primarily on smaller organisms such as other ciliates, flagellates, and amoeba, but may sometimes tear chunks out of larger ciliates.
The protist usually has two macronuclei and a single micronucleus. Its entire cell body is covered with cilia arranged in spirals. It has two contractile vacuoles, one at each end of the body. It contains small birefringent crystals.
Lacrymaria olor can be easily reproduced in vitro, but cultivated populations are difficult to maintain for long. It can reproduce sexually, with each individual assuming either of two mating types ("sexes") at various times of the day. It can also reproduce asexually, possibly after an internal rearrangement of its genome; but there is evidence that this mechanism stops working after a certain number of consecutive asexual generations. It can also regenerate a new head within minutes, if the original is cut off.
Lacrymaria feed primarily on smaller organisms such as other ciliates, flagellates, and amoeba, but may sometimes tear chunks out of larger ciliates.
Friday, September 04, 2020
Saturday, August 15, 2020
Friday, August 14, 2020
Wednesday, August 05, 2020
Thursday, May 07, 2020
Wednesday, March 04, 2020
Monday, November 04, 2019
Today I Learned
First of all, candidates for Queen Bee are selected and worker bees feed them a special jelly concoction, and the virgin Queen Bee which survives to adulthood without being killed by her rivals will take a mating flight with a dozen or so male drones, selected from the tens of thousands of eligible bachelor bees in the colony.
The drones which do mate with the queen bee are not the lucky ones because during sex when the male bee reaches climax its testicles explode and it dies.
And his genitals remain inside the Queen.
Tuesday, August 27, 2019
Tuesday, July 16, 2019
Wednesday, May 22, 2019
Persuasion
"Once you've got 'em by the balls, their hearts and minds will follow." --Teddy Roosevelt(?)
(as made famous by Dick Nixon's Chief Counsel Chuck Colson)
(as made famous by Dick Nixon's Chief Counsel Chuck Colson)
And btw, just cuz it's a natural thing don't make it a good thing for humans.
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