Tag Archive: odor

Facts, not opinions, link feedback loops to odor and pheromone signaling

scentoferos

November 3, 2015 Your sense of smell can make or break a relationship     No it can’t! What Do We Actually Know About Pheromones? July 12, 2013 Excerpt 1): But Kohl’s products, which he likens to food spices (“They give…
Read more

Gut bacteria and pheromones

Gut bacteria mediate aggregation in the German cockroach Reported as: Cockroach swarming pheromones produced by gut bacteria Excerpt: … their study highlights the previously overlooked effect of gut flora in communication among insects. Next, they plan to investigate whether gut…
Read more

Sulfated steroids and RNA-mediated identity codes

terrarium eco system

Summary: In two studies of human pheromones we linked a mixture of androsterone and androstenol to increased flirtatious behavior and reports of increased attraction to the male wearing the mixture. This blog posts explains the reason for the use of…
Read more

Let there be anti-entropic light (2)

Physics

Without knowing anything about the biophysically constrained chemistry of protein folding that links light-induced amino acid substitutions to the stability of DNA is the organized genomes from plants via bioluminescent bacteria in squid, the pattern of nutrient-dependent biologically-based cause and…
Read more

Olfaction, ecology, and intelligence

rp_poster-from-jesse.jpg

“I should think we might fairly gauge the future of biological science, centuries ahead by estimating the time it will take to reach a complete comprehensive understanding of odor. It may not seem a profound enough problem to dominate all…
Read more

The biologically-based origin of the mammalian placenta

The past is not the key to the present

Summary: In this open access journal article, Gunter Wagner’s group eliminates assumptions about mutations and ends the obfuscation of biologically-based cause and effect. Experimental evidence links ecological variation via non-living viruses to ecological adaptations manifested in the biodiversity of morphological…
Read more

From Hydra to humans vs a Lakatosian research program

translocated chromosome

Imre Lakatos Excerpt: “A Lakatosian research programme[8] is based on a hard core of theoretical assumptions that cannot be abandoned or altered without abandoning the programme altogether. More modest and specific theories that are formulated in order to explain evidence…
Read more

Ecological adaptations reported as evolution in insects and mammals

rp_poster-from-jesse.jpg

Evolution of mosquito preference for humans linked to an odorant receptor Excerpt: “Our results also provide insight into the molecular basis of behavioural evolution.” See their diagram in Extended Data Figure 3: Amino acid differences of major Or4 protein alleles….
Read more

The importance of olfactory receptors

edit1

Smell Turns Up in Unexpected Places By ALEX STONEOCT. 13, 2014 Excerpt: “I’ve been arguing for the importance of these receptors for years,” said Dr. Hatt, who calls himself an ambassador of smell, and whose favorite aromas are basil, thyme…
Read more

Insect homology and diversity attributed to mutations

Genetic code

Ancient homology underlies adaptive mimetic diversity across butterflies Excerpt: “Surprisingly, our results suggest that modulation of this conserved developmental gene has occurred in tandem between these two deeply divergent butterfly lineages, implying an unexpected and remarkable level of predictability in…
Read more