sciencealert The first complete map of a platypus genome has just been released, and it's every bit as strange as you'd expect from a creature with 10 sex chromosomes, a pair of venomous spurs, a coat of fluorescent fur, and skin that 'sweats' milk. The duck-billed platypus is truly one of the oddest creatures on Earth. Along with the spiky echidna, these two Australian animals belong to a highly-specialised group of mammals, known as monotremes, which both lay eggs but also nurse their young with milk.
Wellcome Open Res. 2020 Sep 8;5: Fitness cost of insecticide resistance on the life-traits of a Anopheles coluzzii population from the city of Yaoundé, Cameroon Introduction Malaria prevention mainly relies on the use of vector control measures with indoor residual spraying (IRS) and long-lasting insecticidal nets (LLINs) as the core interventions1. Five insecticide families, organophosphates, organochlorines, carbamates, pyrethroids and neonicotinoid are used in public health2. Science Meets Fiction What If? Rejects #12.2: Resonant Frequency Previous post in this series: Ticks And here it is! The final rejected question from xkcd writer Randall Munroe’s book, What If? JPEG Saver screen saver Skip to: JPEG Saver is an image displaying screen saver, a bit like the Windows XP “My Pictures” screen saver or the “Photos” screen saver on Windows 7. JPEG Saver has quite a few more features and options than either of those though: The main configuration dialog, showing the transition preview window
PLOS 04/03/20 Investigation of mosquito larval habitats and insecticide resistance in an area with a high incidence of mosquito-borne diseases in Jining, Shandong Province Abstract Background To investigate mosquito larval habitats and resistance to common insecticides in areas with high incidence rates of mosquito-borne diseases in Jining, Shandong Province, and to provide a scientific basis for the future prevention and control of mosquito-borne diseases and the rational use of insecticides. Methods and results
Mixing Memory: Monkeys Playing With Boys and Girls Toys: One for the Annals of Really Bad Research I've been known to be critical, perhaps overly so, of the media's bad science reporting, because it's, well, bad. But what is the media to do when the science itself is really bad? Since my advice to the media (which no one in the media has actually read, of course) is usually to listen to scientists, I don't really have an answer to that question, because when there's bad science, there's a scientist doing it. If the media listens to that scientist (and it's his or her work, so why wouldn't they?), they're probably not going to know it's bad science, even when it's really bad, as in the case of the study I'm about to describe (really, really, really bad).
sans titre It is improbable that SARS-CoV-2 emerged through laboratory manipulation of a related SARS-CoV-like coronavirus. As noted above, the RBD of SARS-CoV-2 is optimized for binding to human ACE2 with an efficient solution different from those previously predicted7,11. Furthermore, if genetic manipulation had been performed, one of the several reverse-genetic systems available for betacoronaviruses would probably have been used19. PLOS 11/03/21 High pyrethroid/DDT resistance in major malaria vector Anopheles coluzzii from Niger-Delta of Nigeria is probably driven by metabolic resistance mechanisms Abstract Entomological surveillance of local malaria vector populations is an important component of vector control and resistance management. In this study, the resistance profile and its possible mechanisms was characterised in a field population of the major malaria vector Anopheles coluzzii from Port Harcourt, the capital of Rivers state, in the Niger-Delta Region of Nigeria.
Optical illusions show how animals perceive the world Visual illusions remind us that we are not passive decoders of reality but active interpreters. Our eyes capture information from the environment, but our brain can play tricks on us. Perception doesn’t always match reality. Scientists have used illusions for decades to explore the psychological and cognitive processes that underlie human visual perception. More recently, evidence is emerging that suggests many animals, like us, can perceive and create a range of visual illusions. REGIONAL ILEITIS: A PATHOLOGIC AND CLINICAL ENTITY We propose to describe, in its pathologic and clinical details, a disease of the terminal ileum, affecting mainly young adults, characterized by a subacute or chronic necrotizing and cicatrizing inflammation. The ulceration of the mucosa is accompanied by a disproportionate connective tissue reaction of the remaining walls of the involved intestine, a process which frequently leads to stenosis of the lumen of the intestine, associated with the formation of multiple fistulas. The disease is clinically featured by symptoms that resemble those of ulcerative colitis, namely, fever, diarrhea and emaciation, leading eventually to an obstruction of the small intestine; the constant occurrence of a mass in the right iliac fossa usually requires surgical intervention (resection). The terminal ileum is alone involved.