Look at this picture, here a mothers milk visibly changed overnight to meet the demands of her baby who was unwell at the time
Those signals are communicated to the mother by saliva from her baby, the mother may even be unaware of her baby’s health status yet levels of white blood cells in milk are boosted.
Research shows compositions of lactoferrin which is an immune molecule, which carries out protective functions like piercing the walls of harmful bacteria, are also found to be increased in the weeks prior to and following an infant's illness.
Breast milk is awesome in its complexity and the way it constantly changes and is tailored 1/🧵
📸Mallory Smothers
2/🧵it is more than a nutritional supply,
it has been demonstrated that breast milk leukocytes respond dynamically to maternal as well as infant infections, and that reverse flow of milk
from the infant mouth back into mum delivers signals that morph the milk to the child’s needs
the mother of a premature baby produces milk with more fats and secretory immunoglobulin the latter protect the baby until the development of the immune system
Animal studies show the composition of milk even changes when daughters or sons are fed.
Milk even changes throughout the day,
Breast milk contains melatonin, the sleep hormone, and tryptophan, an amino acid that contributes to its production. These components fluctuate in a cyclical pattern that may aid in regulating infants' sleep and wakefulness.
But I think the most amazing study came in 2007. Stem cells were discovered in human breast milk.
A study conducted in 2014 tracked these stem cells in nursing mice and observed that they migrated from the mother's mammary glands, crossed the stomach walls of the pups, and integrated into developing tissues throughout their bodies. Even when when the baby mice grew up, the mother's cells remained present and had transformed into mature tissues alongside the offspring's cells.
3/🧵as well as retrograde flow back to mum to morph future feeds to the exact requirement baby needs’
Baby’s saliva also interacts with milk to make it even more powerful. concentrations of hypoxanthine and xanthine in neonatal saliva were significantly higher than those in adult saliva, while the combination of baby saliva with breastmilk produced enough H2O2 to inhibit the growth of opportunistic pathogens.
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The little bird that raised a cuckoo as it’s own offspring
the young cuckoo has grown bigger, than Its host parents, but they dutifully continues to feed and care for it
birds have evolved signature markings on their eggs to distinguish their own from those of any brood parasite yet cuckoos have an egg mimicking ability, and can mimic the most sophisticated markers cam.ac.uk/research/news/…
How is it possible for a cuckoo chick to hatch first just in time to evict all the other eggs to ensure it’s own survival?
Well the cuckoo eggs are internally incubated longer by it’s own parent for this advance hatching
3000 years ago, in what is now Iran, a type of underground aqueduct called a qanat was engineered to transport water over long distances to farms and villages that couldn’t exist without it in the hot dry climates
The holes supplied oxygen to workers who dug the aqueduct by hand… https://t.co/ReGzWGf6TAtwitter.com/i/web/status/1…
The reason qanats do not appear as straight lines is primarily due to the need to follow the natural contours of the land. The process of creating a qanat involved identifying a water source, usually an underground aquifer, and then digging a tunnel from a lower elevation to tap… twitter.com/i/web/status/1…
In this time-lapse video by Mitsuru Yasui
You can see many cats following a sun beam.
Cats use sunlight to regulate body temperature. They are conserving energy. Napping in sunny spots cancels the drop in temperature that sleep induces
Source of video
3/ I saw a few questions about they need to regulate body temp, theirs is a little bit higher than ours
between 100.4°F and 102.50F,
compared to ours at 98.6° F, body heat is lost as metabolic process slow down in sleep so they can generate their heat using energy or use the sun
The little bird that raised a cuckoo as it’s own offspring
cuckoos are brood parasites, laying eggs in the nests of other birds who are tricked into this exhausting responsibility of raising these chicks 1/
2/ birds have evolved signature markings on their eggs to distinguish their own from those of any brood parasite yet cuckoos have an egg mimicking ability, and can mimic the most sophisticated markers cam.ac.uk/research/news/…
3/ How is it possible for the cuckoo chick to hatch first just in time to evict all the other eggs to ensure it’s own survival?