Page 91 - ஸ்கிரிப்ட்கள் நிறுவனம் ஆஃப் கடல்சார்வியல் News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Credit: Georgia Aquarium Shark scientists at Georgia Aquarium, Scripps Institution of Oceanography at UC San Diego, and Dalhousie University are challenging the status quo in shark and ray mating research in a new study that looks at biological drivers of multiple paternity in these animals. The results were published March 4 in the journal Molecular Ecology. Many species of sharks and rays exhibit multiple paternity, where females give birth to a litter of pups that have different fathers. While widely documented in scientific literature, the drivers of this phenomenon are not well understood. However, previous research has cited male aggression as the reason, claiming that the females are unable to avoid or submit to their advances during mating. This has led to the convenience polyandry theory, the assumption that there is a greater cost for females when refusing male mating attempts, as being the most widely credited explanation.

United statesScripps institution of oceanographyKady lyonsDovi kacevDalhousie universityShark conservation fundGeorgia aquariumScripps institutionScripps oceanographyChristopher mullDevelopmental reproductive biologyEcology environmentMarine freshwater biologyஒன்றுபட்டது மாநிலங்களில்ஸ்கிரிப்ட்கள் நிறுவனம் ஆஃப் கடல்சார்வியல்டால்ஹெளசி பல்கலைக்கழகம்