Several scenarios of reconstruction accuracy were compared for the WOA and SHO. The numerical simulations prove that the WOA has a better reconstruction capability. Keywords: inverse scattering; frequency domain; whale optimization algorithm (WOA); spotted hyena optimizer (SHO) 1. Introduction In ...
6 Vertebral and costal morphology of Perucetus colossus (MUSM 3248, holotype) compared to that of other cetaceans. a, mean and maximum ratio of vertebral centrum anteroposterior length (CL) to mediolateral width (CW), computed with the thoracic and lumbar vertebrae of other cetaceans (Ba = ...
Left and right sound channel inputs are likely compared to generate a three-dimensional soundscape (particularly if two different frequencies are detected). Odontocetes use this information from biosonar signals to echolocate, that is, to understand surface characteristics, composition, and location/...
Their brains weigh 20 pounds compared to our three-pounders. Perhaps more important: their brain’s neocortex, where higher brain functions take place, are thicker and contain more folds than our own, Gruber says. So what are these creatures — perhaps best known for their depiction in Herman ...
Whale barnacles are a specialized family of acorn barnacles, the filter-feeding marine crustaceans that affix themselves to various surfaces and encase their soft bodies in volcano-shaped shells. Like the whales they live on, whale barnacles can grow to dramatic proportions compared with the species...
s brain is the largest of any known modern or extinct animal. Its size is more than three times that of an average adult human brain in volume. Despite its massive size, the sperm whale’s encephalization quotient (EQ) is relatively low, at around 0.3, especially when compared to other ...
2). In order to ensure that the modeling simplification with regards to the thickness of the connective tissue partitions did not influence our overall conclusions and were biologically sound, we conducted a sensitivity analysis and compared the von Mises skull stresses of Model A, against a ...
(Centre) A density plot showing the distribution of the ratio between final ICIs in ornamented codas versus unornamented codas. Ornamented codas have a significantly different ICI distribution compared to regular codas. (Right) Examples of ornaments in the DSWP dataset.EThirty minutes of multi-whale...
The most common cause of dwarfism in Orcas is achondroplasia, a bone growth disorder, which is responsible for 70% of Dwarf Orca ® cases.[1] In cases of achondroplasia the fins are disproportionally short compared to the trunk (abdomen area), with the head larger than normal and unique ...
Despite the absolute magnitude and highly-developed neuroanatomical structure of the cetacean brain, the extent to which cetaceans possess a grammatical-syntactical language remains uncertain1. Regardless, cetaceans have cognitive abilities2 and societies3 that are commensurate with those of human ...