Abstract 548 shark species were considered in this paper. They were classified in function of
their depth of occurrence: 218 deep, 114 transitory and 210 shallow. The diets of the 332 …

Environmental controls of species diversity represent a central research focus in
evolutionary biology. In the marine realm, sharks are widely distributed, occupying mainly …

Given the conservation status and ecological, cultural, and commercial importance of
chondrichthyan fishes, it is valuable to evaluate the extent to which research attention is …

The dalatiid genus Isistius Gill (1864) has three valid species currently recognized in the
literature: Isistius brasiliensis Quoy & Gaimard (1824), I. plutodus Garrick & Springer (1964) …

Elasmobranch fishes (sharks, skates and rays) are some of the most morphologically and
behaviourally diverse vertebrates on the planet, demonstrating a wide range of feeding …

The deep sea, which encompasses the largest habitat on Earth, presents a set of extreme
and unique environmental conditions, including high hydrostatic pressure, near-freezing …

Background and objective The periodontal ligament (PDL) is an essential tissue for tooth
function. However, the 3‐dimensional ultrastructure of these PDL collagen bundles on a …

Alopias is a group of lamniform sharks characterized by a highly elongate caudal fin with
three known extant species: Alopias pelagicus (pelagic thresher shark), Alopias …

The authors describe a first record of Mitsukurina owstoni in the Mediterranean Sea:“On 25th
August 2020, a specimen of M. owstoni was spotted dead on the shore accidentally by a …

Kinematic and behavioral studies of feeding performance in large, pelagic sharks have
historically been hindered by logistical limitations including a lack of access to specimens …