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Mark Ikeda

@mikeda56

Retired Biology Prof., San Bernardino Valley College - Go myrmecology!

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29.09.2023
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Latest posts by Mark Ikeda @mikeda56

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Our paper on the mysterious Devonian organism Prototaxites has now finally been published! See the paper here (www.science.org/doi/10.1126/...) and our explainer thread below!
Prototaxites reconstruction by Matt Humpage

21.01.2026 19:25 πŸ‘ 1136 πŸ” 414 πŸ’¬ 39 πŸ“Œ 110
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Weird wet weather has Joshua trees flowering early β€” or late? Help the Yoder Lab map this β€œbonus bloom” to understand why A flowering tree in Yucca Valley, CA, observed by iNaturalist contributor wanderingmojave on December 9. A tree with lots of flowers in Tehachapi, CA, observed by contributor tina9294 on NovemberΒ 2…

Weird wet weather has Joshua trees flowering early β€” or late? Help the Yoder Lab map this "bonus bloom" to understand why lab.jbyoder.org/2025/12/10/w...

27.01.2026 00:08 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

NYT video analysis confirms victim’s gun was removed before he was shot. So he was unarmed. https://www.nytimes.com/2026/01/24/us/minneapolis-shooting-federal-agents-video.html

24.01.2026 20:35 πŸ‘ 2005 πŸ” 753 πŸ’¬ 43 πŸ“Œ 37

Lithium ion generated heat?

13.01.2026 05:52 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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280 million e-bikes are slashing oil demand far more than electric vehicles E-bikes and scooters displace 4x as much demand for oil as all of the EVs in the world.

Want to reduce your transportation emissions?

Skip the EV and go with an e-bike.

β€œElectric micromobility…[is] actually displacing four times as much demand for oil as all the world’s electric cars at present.”

Bonus: e-bikes are also fun AND healthy 🀯

arstechnica.com/cars/2023/11...

03.01.2026 00:24 πŸ‘ 31 πŸ” 12 πŸ’¬ 1 πŸ“Œ 1
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This Diminutive Reptile Plays Rock-Paper-Scissors

www.nytimes.com/2026/01/01/s...

02.01.2026 04:24 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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The Stopwatches in the Bee Brain: How Insects Master Time and What It Means for AI - Our Narratives A new study published in Biology Letters has revealed that bumblebees, with brains smaller than a cubic millimeter, are capable of perceiving and processing

β€œThe Stopwatches in the Bee Brain: How Insects Master Time and What It Means for AI” features our work on #time processing across species
ournarratives.net/the-stopwatc... (the front image is not accurate but there are other images in the article) @queenmarycbb.bsky.social @qmul.bsky.social

25.12.2025 14:57 πŸ‘ 148 πŸ” 36 πŸ’¬ 10 πŸ“Œ 4
Bronze plaque saying "A Letter to the Future. Ok is the first Icelandic glacier to lose its status as a glacier. In the next 200 years all our glaciers are expected to follow the same path. This monument is to acknowledge that we know what is happening and what needs to be done. Only you know if we did it.  August 2019. 415ppm CO2"

Bronze plaque saying "A Letter to the Future. Ok is the first Icelandic glacier to lose its status as a glacier. In the next 200 years all our glaciers are expected to follow the same path. This monument is to acknowledge that we know what is happening and what needs to be done. Only you know if we did it. August 2019. 415ppm CO2"

TIL about a memorial ceremony in Iceland in 2019 to mark the end of a glacier, changing the place name from OkjΓΆkull to Ok (jΓΆkull = glacier). Uncompromising wording on the bronze plaque:
"This is to acknowledge that we know what is happening and what needs to be done. Only you know if we did it".

07.12.2025 17:17 πŸ‘ 12787 πŸ” 5237 πŸ’¬ 113 πŸ“Œ 188

I could be mistaken; a fly?

17.11.2025 04:55 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Congrats! Such enchanting critters!

02.11.2025 16:37 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Air quality alert coming tomorrow

02.11.2025 04:27 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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She Studied How Logging Affects Pollinators

An article about a former lab tech in my lab, Kim Ballare, in the new NYTimes "Lost Science" series about impacts of federal cuts. Thanks to @carlzimmer.com for doing this!
www.nytimes.com/2025/10/08/s...

13.10.2025 20:00 πŸ‘ 35 πŸ” 12 πŸ’¬ 0 πŸ“Œ 0

5? What fun; thanks!

17.09.2025 00:30 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Look at those raptorial legs! Impressive!

17.09.2025 00:25 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This might be a productive organization for you; www.gnsi.org

14.09.2025 05:03 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

My gestalt, knee jerk, identifications would be useless down under! Thanks for your photo treats Alex!

11.09.2025 22:43 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Nothing more grounding than being reminded that we are all part of this good earth! Hope your semester? is a good one.

18.08.2025 05:10 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Thank goodness it split the uprights!

17.08.2025 15:08 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Opinion | Trump Is Squandering the Greatest Gift of the Manhattan Project

The blind destruction of American scientific research by the Trump Administration seems to indicate a lack of understanding about the true origin of many modern technological innovations.

Trump Is Squandering the Greatest Gift of the Manhattan Project www.nytimes.com/2025/08/12/o...

12.08.2025 17:03 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Top-down macro photograph of three blocky, black ants on a white background. All the ants are covered in evenly-spaced, silvery hairs, giving a glittery appearance. The ants at left and center have large, plate-like heads, the one at center, the queen, is quite elongated.

Top-down macro photograph of three blocky, black ants on a white background. All the ants are covered in evenly-spaced, silvery hairs, giving a glittery appearance. The ants at left and center have large, plate-like heads, the one at center, the queen, is quite elongated.

My project this evening was this composite photograph showing caste in Texas turtle ants: soldier, queen, and worker. This is one of those twig-nesting ants whose soldiers serve as living guard doors, using that massive head to block the entrance.

05.08.2025 03:30 πŸ‘ 104 πŸ” 10 πŸ’¬ 5 πŸ“Œ 1
An article on Rosalind Franklin published (2001) in the Canadian Journal of Medical Laboratory Science.

An article on Rosalind Franklin published (2001) in the Canadian Journal of Medical Laboratory Science.

Happy birthday Rosalind Franklin (25 July 1920)

Chemist and X-ray crystallographer, Franklin’s work illuminated structures of RNA, DNA, coal, graphite, and viruses.

#WomenInStem

25.07.2025 16:48 πŸ‘ 72 πŸ” 28 πŸ’¬ 0 πŸ“Œ 0

Color me flabbergasted!

15.07.2025 02:58 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Lovely to see.

The reason there is no official merch is that Watterson refused to license it. Said he’d quit drawing the strip if the syndicate insisted. They gave in.

The central character is a *stuffed animal.* He could have been Charles Schulz level rich.

05.07.2025 20:55 πŸ‘ 1166 πŸ” 67 πŸ’¬ 25 πŸ“Œ 4

If you have the specimen in hand; hemipterans are notable for their piercing mouthparts (looks like a needle). The presence of a triangular shaped scutellum is also a clue. Nice ID!

06.07.2025 05:00 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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It's been a bit since I've done a meteorological deep dive, but the devastating flash #flood in central Texas this July 4th/5th deserve a closer look. #TXwx

Yes remnants of #Barry were involved helping enhance moisture. A remnant MCV from Mexico on 3 July also played a role.

Full evolution below ‡️

05.07.2025 22:00 πŸ‘ 343 πŸ” 144 πŸ’¬ 12 πŸ“Œ 25

It is especially nice to see that these remarkable birds that creep into the SE corner of AZ are still observed! Thanks for the post and photo!!

06.07.2025 04:40 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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06.07.2025 00:51 πŸ‘ 4559 πŸ” 1429 πŸ’¬ 95 πŸ“Œ 60
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As Floods Hit, Key Roles Were Vacant at Weather Service Offices in Texas

As Floods Hit, Key Roles Were Vacant at Weather Service Offices in Texas www.nytimes.com/2025/07/05/u...

06.07.2025 04:04 πŸ‘ 356 πŸ” 147 πŸ’¬ 20 πŸ“Œ 15

we worked so hard on this, nights and weekends, trying our best to do a good job for the American people

30.06.2025 22:43 πŸ‘ 2166 πŸ” 686 πŸ’¬ 44 πŸ“Œ 11
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Supplemental Feeding as a Driver of Population Expansion and Morphological Change in Anna's Hummingbirds Bird beaks are highly adaptable, with the potential to undergo rapid morphological shifts in response to environmental change such as climatic variation or food availability. Anna's Hummingbirds (Cal...

🚨New paper alert!🚨
We show that hummingbird beaks have changed in shape & size since around WWII, driven by the rise of commercialized feeders! 🧡
πŸ“„ Paper: dx.doi.org/10.1111/gcb....
#ornithology #evolution #GlobalChangeBiology

21.05.2025 13:20 πŸ‘ 249 πŸ” 105 πŸ’¬ 7 πŸ“Œ 14