Skip to main content

Scout Bees Have "Curious" Brains Like Humans

It was thought that bees were like robots who went about their work on instinct alone, but some bees have "curious" genes. The scouts who find sources of food are actually mischievous seekers. Their genes give them a brain structure similar to humans.

Scout bees are independent creatures who don't go along with the mob. They find new food sources by intuition and pure skill. Being female, they go back to the hive do a wiggle dance to pass on directions, then go out again to find a new source.

Tests were done on a hive of bees. The hive was put into an enclosure and food was put out in different colored jars. Bees that located the jars were collected and marked with a dot of paint. Later the brains of these scout bees were removed and compared with the brains of normal hive bees. Brain activity in the genes of the two types of bees differed by 16 per cent. The brains of scouts could change the levels of neurotransmitters dopamine and glutamate. Another test was done with the scouts being fed sugar water laced with a neurotransmitter "booster", The scouts became more active in their search.

This proves that dopamine and glutamate are responsible for curiosity in humans. The common ancestor of bees and Man was a marine flatworm. These basic animals would not have had scouts, so the "curious" genes developed in both lines, bees and Man, separately. It is also probable that the gene variant can become active in any animal: it is latent in the gene toolkit.
. . . . . . . . . . . . . . . . . .
Biology

Popular posts from this blog

Natural History Museum Human Evolution Gallery

 The Human Evolution gallery at Natural History explores the origins of Homo sapiens by tracing our lineage back to when it separated from that of our closest living relatives, the bonobos and chimpanzees. Around 200,000 years ago, Africa was where modern humans developed. They have smaller faces and brow ridges, a chin that is more prominent than that of other ancient humans, and a brain case that is higher and more rounded. Modern human fossils from Israel (around 100,000 years old), Africa (around 195,000 years old), and Australia (around 12,000 years old) are among the casts on display. These fossils demonstrate that typical characteristics of modern humans evolved over time rather than emerging fully formed from Africa. They also suggest that at least two waves of people leaving Africa may have occurred, one about 100,000 years ago and the other about 60,000 years ago. We are all descendants of those who left during that second migration wave outside of Africa. Source: Natural...
  Home-made saucer that flies down the road.

Study of Tooth Enamel Indicates Neanderthal Diet Was Carnivorous

 A new study on Neanderthal dietary practices has just been published in the journal PNAS by researchers from the French National Centre for Scientific Research (CNRS) and several German scientific institutions. They were able to determine that a Neanderthal who lived in a cave on the Iberian Peninsula during the Middle Paleolithic period (50,000 years ago) ate exclusively carnivorous food using a newly developed method for studying the chemical signatures of ancient tooth enamel. This isn't the first study to find this, either. Despite this, it is a one-of-a-kind and significant discovery because it was made through the development of a novel analytical method that could be used to learn more about the diet and way of life of Neanderthals who lived in other parts of Eurasia in the distant past.   To investigate the diet and eating habits of Neanderthals, numerous research projects have been initiated. However, they have resulted in contradictory outcomes. The CNRS researchers...