Spiders are the last creatures we think of when we think about milk. Spiders are notorious for abandoning their newborns shortly after birth. One tiny species has completely rewritten this idea.Most spiders have a simple pattern.They lay eggs, guard the eggs briefly, then move on. This spider doesn’t stop at that. A surprising nurturing spiderInstead leaving her spiderlings to fend on their own, the mother spider produces an nutrient-rich milk-like fluid that she feeds directly to them. For the first few days, this becomes their main source of nutrition.Researchers have found that this fluid contains proteins, fats, and sugars–much like mammalian milk. Spiders (allegedly) keep this animal as a glowing prisoner to draw more prey to their websWhat’s even more unusual is that this care doesn’t end quickly. The spiderlings remain with the mother for at least 38-40 day, returning to her to feed and protect them as they grow. Even after reaching sexual maturity, female offspring can continue to return to the mother for lactation. This extended parental care is rare in spiders. Most species rely more on numbers than nurturing. By focusing her energy on fewer offspring the mother increases the chances of their survival in unpredictable environments. She gives her young a better start, rather than relying on luck. Story continues below this advertisement. This discovery has also changed the way scientists think about “milk”. This fluid is not identical to mammalian “milk”, but it serves the same purpose: direct nourishment of offspring by parents during early development. This spider milk contains fats, sugars, and protein in a concentration four times greater than cow’s.
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