Scientists from China have discovered a female spider that moves by jumping, and this female spider produces milk that is rich in nutrients to feed her young ones for weeks and even after the young ones start beginning to hunt by themselves.
This research has indicated that mammal-like milk provisioning, as well as the care that is parental, has as well evolved in insects as well as other invertebrates. This study came after Chen Zheng who is a scientist from the Chinese Academy of science in China noticed that a sure thing jumping spider with a scientific name of Tuxes Magnus was seeming to be slow to leave the nest and this suggests that the mother was providing some childcare.
These female jumping spiders lay between two to thirty-six eggs at a time and as so as the eggs become hatched the mother spider begins to deposit tiny milky droplets around the nest. Researchers after analyzing the milk found that the fluid contained about four times as much proteins as the milk from the cow as well as fat and sugar.
Also, they noticed that in the first couple of days the young baby spiders used to sip droplets of the milk around the nest when the researchers did a closer inspection. And after the first week, the baby spider would then drink the fluid directly from the body of the mother.
The researchers as well found out that the mother continued to provide the milk even after the young spiders began leaving the nest at about twenty days of age. Then the sucking of the fluid usually ceases at forty days, and this is when the baby spiders become mature sexually.
This research helps increase the researchers understanding of the complex forms of parental care there are evolutionary. These findings were also published in the science book. Based on these findings we see that insect, as well as invertebrates, are evolving with time and in years to come some of the insects may have mammary glands.