Abstract Fossils provide an excellent opportunity to study and understand the evolution of insular environments free human-made perturbations. Here, we evaluated life-history traits strategy extinct giant Prolagus sardus (Mammalia: Lagomorpha) by examining microscopically its fossilized bone tissues (osteohistology, skeletochronology, quantitative geometry). For this task, a complete ontogeneti...

The paper presents the results of age and growth studying Tajikistan toadhead agama Phrynocephalus sogdianus by skeletochronology. A total 29 adult individuals (14 females 15 males) from vicinity Uchkyzil (Termez district, Surkhandarya region, Uzbekistan) were studied. All animals, on section tubular bones had a birth (hatching) line appearing shortly after lizards hatching. majority sample con...

Variation in age and size of mature nine-spined sticklebacks (Pungitius pungitius) within and among 16 Fennoscandian populations were assessed using skeletochronology. The average age of individuals in a given population varied from 1.7 to 4.7 years. Fish from pond populations were on average older than those from lake and marine populations, and females tended to be older than males. Reproduct...

The study of bone growth marks (BGMs) and other histological traits of bone tissue provides insights into the life history of present and past organisms. Important life history traits like longevity or age at maturity, which could be inferred from the analysis of these features, form the basis for estimations of demographic parameters that are essential in ecological and evolutionary studies of...

Bone microanalyses of extant vertebrates provide a necessary framework from which to form hypotheses regarding the growth and skeletochronology of extinct taxa. Here, we describe the bone microstructure and quantify the histovariability of appendicular elements and osteoderms from three juvenile American alligators (Alligator mississippiensis) to assess growth mark and tissue organization withi...

The effects of climate change on organisms are now being extensively studied in many different taxa. However, the variation in body size, usually shrinkage in response to increasing temperature, has received little attention regarding to reptiles. During past periods of global warming, many organisms shrank in size, and current evidence and experiments manipulating temperature have shown a biom...