Colorizing Electron Microscope Photos Deceptively/Incorrectly
Some 'science' photo libraries are…questionable.
This photo claims to be "Ant carrying aphid egg, SEM" colorized to highlight the "egg" but look closely!
It's NOT an egg. That's just part of the ant's mouth! To understand what's wrong, take a look at the second set of photos by Hugo Darras. You can see the "egg" is part of her maxillae, the part she uses to collect liquid.
How did they decide it was an aphid egg?
Most aphids don't even lay eggs...they give live birth!
A coloured scanning electron micrograph + head of a Jumping Spider (family Salticidae) + common housefly (Musca domestica) + cat flea (Ctenocephalides felis + head of a maggot or the larva of a bluebottle fly (Protophormia sp.) with tiny teeth-like fangs extending from its mouth + head of a soldier turtle ant (Cephalotes sp.) from the Amazonian rainforest + head of a honey bee
Kiss Kiss! This is what some pollen grains look like under the scanning electron microscope. The exact species wasn't listed in the original post but many plants, ranging from lilies to redbuds, that have pollen grains that look similar to this.
From Wikipedia:
Pollen is a powdery substance produced by flowers of seed plants. It consists of pollen grains (highly reduced microgametophytes), which produce male gametes (sperm cells). Pollen grains have a hard coat made of sporopollenin that protects the gametophytes during the process of their movement from the stamens to the pistil of flowering plants, or from the male cone to the female cone of gymnosperms. If pollen lands on a compatible pistil or female cone, it germinates, producing a pollen tube that transfers the sperm to the ovule containing the female gametophyte. Individual pollen grains are small enough to require magnification to see detail. The study of pollen is called palynology and is highly useful in paleoecology, paleontology, archaeology, and forensics. Pollen in plants is used for transferring haploid male genetic material from the anther of a single flower to the stigma of another in cross-pollination. In a case of self-pollination, this process takes place from the anther of a flower to the stigma of the same flower.
Analysing and modelling cells of the brain's cochlear nuclei called globular bushy cells using volume electron microscopy to better understand how sound is perceived
Read the published research paper here
Image from work by George A Spirou and Paul B Manis, and colleagues
Department of Medical Engineering, University of South Florida, Tampa, FL and Department of Otolaryngology/Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
Image originally published with a Creative Commons Attribution 4.0 International (CC BY 4.0)
Published in eLife, June 2023
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A Force from Empty Space: The Casimir Effect
Image Credit & Copyright: Umar Mohideen (U. California at Riverside)
Explanation: This tiny ball provides evidence that the universe will expand forever. Measuring slightly over one tenth of a millimeter, the ball moves toward a smooth plate in response to energy fluctuations in the vacuum of empty space. The attraction is known as the Casimir Effect[...]
A Scanning Electron Microscope (SEM) image of Pollen from a variety of common plants:
Sunflower (Helianthus annuus, small spiky sphericals, colorized pink), morning glory (Ipomoea purpurea, big sphericals with hexagonal cavities, colorized mint green), hollyhock (Sildalcea malviflora, big spiky sphericals, colorized yellow), lily (Lilium auratum, bean shaped, colorized dark green), primrose (Oenothera fruticosa, tripod shaped, colorized red) and castor bean (Ricinus communis, small smooth sphericals, colorized light green). The image is magnified some x500, so the bean shaped grain in the bottom left corner is about 50 μm long.