Acoustic Battles for the Harem: How the Calls of Siberian Wapiti Reveal Their Status and Individuality
Researchers at HSE University, Lomonosov Moscow State University, and the A.N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences have studied the distinctive vocalisations of Siberian wapiti (Cervus canadensis sibiricus) stags during the peak of the mating season, when males produce rutting calls (bugles) to attract females (hinds) and deter rivals. The scientists have discovered how the acoustic parameters of these rutting calls reflect the stag's status—whether he currently holds a harem or is still attempting to acquire one—as well as his individual characteristics. The study has been published in Journal of Zoology.
Russian Scientists Have Studied Marine Worm with Unique Spermatozoa
Russian scientists at Zhirmunsky National Scientific Centre of Marine Biology, HSE University, and Moscow State University have studied Phoronis embryolabi, a rare species of marine invertebrate found in the waters of the Sea of Japan. This species is notable for its unique reproductive system, which includes the development of larvae within the parent’s body and an unusual sperm structure. The study's findings contribute to our understanding of the evolutionary adaptations of marine organisms to extreme conditions. The study has been published in Zoologischer Anzeiger.