Abstract Environmental controls of species diversity represent a central research focus in evolutionary biology.In the marine realm, sharks are widely distributed, occupying mainly higher trophic levels and varied dietary preferences, mirrored by several morphological traits and behaviours.Recent comparative phylogenetic studies revealed that shark
Coronavirus disease 2019 (COVID-19) is a disease caused by infection with the SARS-CoV-2 virus and has represented one of the greatest challenges humanity has faced in recent years.The virus can infect a large number of Goji Berry organs, including the lungs and upper respiratory tract, brain, liver, kidneys, and intestines, among many others.Altho
Analyzing images of the Cygnus Loop, a core-collapse supernova (CCSN) remnant, in different emission bands, we identify a point-symmetrical morphology composed of three symmetry axes that we attribute to shaping by three pairs of jets.The main jet axis has an elongated S shape, appearing as a faint narrow zone in visible and UV.We term it the S-sha
Scorpions of the genus Tityus show holokinetic chromosomes, achiasmatic male meiosis and an absence of heteromorphic sex chromosomes, like all Buthidae.In this work, we analysed the meiotic behaviour and chromosome rearrangements of a population of the scorpion Tityus confluens, characterising the cytotypes of males, females and embryos with differ