Results 31 to 40 of about 1,592 (175)
The metabolic response of the Bradypus sloth to temperature [PDF]
PeerJ, 2018 Poikilotherms and homeotherms have different, well-defined metabolic responses to ambient temperature (Ta), but both groups have high power costs at high temperatures.
Rebecca Naomi Cliffe +5 more
doaj +2 more sources
Sloth: Threads as Interrupts [PDF]
2009 30th IEEE Real-Time Systems Symposium, 2009 Traditional operating systems differentiate between threads, which are managed by the kernel scheduler, and interrupt handlers, which are scheduled by the hardware. This approach is not only asymmetrical in its nature, but also introduces problems relevant to real-time systems because low-priority interrupt handlers can interrupt high-priority threads.
Wanja Hofer +3 more
openaire +1 more source
Fecal estradiol and progesterone metabolite levels in the three-toed sloth (Bradypus variegatus) [PDF]
Brazilian Journal of Medical and Biological Research, 2006 The present study was carried out to assess the possibility of measuring fecal steroid hormone metabolites as a noninvasive technique for monitoring reproductive function in the three-toed sloth, Bradypus variegatus.
M. Mühlbauer +3 more
doaj +1 more source
Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)
The Anatomical Record, EarlyView.Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto +3 more
wiley +1 more source
Parallel evolution of reduced cancer risk and tumor suppressor duplications in Xenarthra
eLife, 2022 The risk of developing cancer is correlated with body size and lifespan within species, but there is no correlation between cancer and either body size or lifespan between species indicating that large, long-lived species have evolved enhanced cancer ...
Juan Manuel Vazquez +5 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract Primates show a high degree of locomotor diversity that engenders similar variance in limb bone cross‐sectional geometry and bending strength: leaping primates have stronger hindlimb bones whereas suspensory species have stronger forelimb bones.
Angela M. Mossor +7 more
wiley +1 more source
BMC Evolutionary Biology, 2010 Background Sloths are slow-moving arboreal mammals inhabiting tropical rainforests in Central and South America. The six living species of sloths are occasionally reported to display a greenish discoloration of their pelage.
Chiarello Adriano G +7 more
doaj +1 more source
Humans are not unique: difficult birth is common in placental mammals
Biological Reviews, EarlyView.ABSTRACT Human childbirth is widely presumed to be uniquely difficult and dangerous compared to birth in other mammals. Tight fetopelvic proportions can result in obstructed labour and contribute to high rates of maternal and neonatal mortality. Ideas summarised under the ‘obstetrical dilemma’ have contributed to this assumption by explaining difficult
Nicole D. S. Grunstra
wiley +1 more source
The effect of feeding on the respiratory activity of the sloth
Brazilian Journal of Medical and Biological Research, 2002 The aim of the present study was to confirm whether feeding influences the resting breathing rate and to observe possible alterations in blood gas and pH levels produced by feeding in unanesthetized sloths (Bradypus variegatus). Five adult male sloths (4.
M.A.C. Pedrosa +4 more
doaj +1 more source
Genomic data suggest parallel dental vestigialization within the xenarthran radiation
Peer Community Journal, 2023 The recent influx of genomic data has provided greater insights into the molecular basis for regressive evolution, or vestigialization, through gene loss and pseudogenization.
Emerling, Christopher A +8 more
doaj +1 more source