Results 41 to 50 of about 39,012 (266)

Gonadal development in scorpion mud‐turtles, Kinosternon scorpioides, in a controlled environment

open access: yesThe Anatomical Record, EarlyView.
Stage 20 was identified as the critical point for gonadal differentiation in Kinosternon scorpioides, providing key insights into sex determination. These findings enhance conservation strategies by supporting reproductive management and population viability in both in situ and ex situ programs. Abstract Research on gonadal development including sexual
Brenda Braga   +4 more
wiley   +1 more source

A newly described scorpion species, Leiurus abdullahbayrami (Scorpion: Buthidae), and the lethal potency and in vivo effects of its venom

open access: yesJournal of Venomous Animals and Toxins including Tropical Diseases, 2011
Currently, medically significant scorpion species belong to the Buthidae family and are represented by the genera Androctonus, Buthus, Mesobuthus, Hottentotta, Parabuthus, Tityus, Centruroides, Leiurus.
O Ozkan, EA Yagmur, M Ark
doaj   +1 more source

Animal suicide: An account worth giving? Commentary on Peña-Guzmán on Animal Suicide [PDF]

open access: yes, 2018
Peña-Guzmán (2017) argues that empirical evidence and evolutionary theory compel us to treat the phenomenon of suicide as continuous in the animal kingdom.
Mikhalevich, Irina
core  

Circumstantial evidences for mimicry of scorpions by the neotropical gecko Coleodactylus brachystoma (Squamata, Gekkonidae) in the Cerrados of central Brazil [PDF]

open access: yes, 2005
There are few records of invertebrates mimicry by reptiles. In the Cerrados of central Brazil, the small Coleodactylus brachystoma is an endemic species common in the islands and margins of the Serra da Mesa hydroelectric dam reservoir.
Paulo Cesar Motta   +1 more
core   +2 more sources

Discovery and Initial Investigation of a New Low Surface Brightness Planetary Nebula Candidate at High Galactic Latitude

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik   +12 more
wiley   +1 more source

Experimental Tityus serrulatus scorpion envenomation: age- and sex-related differences in symptoms and mortality in mice

open access: yesJournal of Venomous Animals and Toxins including Tropical Diseases, 2011
Among the various methods for evaluating animal venom toxicity, the calculation of the median lethal dose (LD50) is the most widely used. Although different protocols can be used to calculate the LD50, the source of the venom and the method of extraction,
Pucca MB   +7 more
doaj   +1 more source

SCORPIONS, SCORPIONISM, LIFE HISTORY STRATEGIES AND PARTHENOGENESIS

open access: yesJournal of Venomous Animals and Toxins, 1995
Recently public health problems resulting from scorpion stings have shown an alarming increase in various tropical and subtropical countries such as Brazil, Mexico, Tunisia and Morocco. In some regions of Brazil, particularly in the States of Minas Gerais, Sao Paulo, Bahia, Goias and the Federal District, more than 6000 scorpion stings with over 100 ...
LOURENÇO, W.R., CUELLAR, O.
openaire   +2 more sources

Single‐cell sequencing reveals potential novel insights into appendage‐patterning and joint‐development in a spider

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Jointed appendages represent one of the key innovations of arthropods, and thus understanding the development and evolution of these structures is important for the understanding of the evolutionary success of Arthropoda. In this paper, we analyze a cell cluster that was identified in a previous single‐cell sequencing (SCS ...
Brenda I. Medina‐Jiménez   +2 more
wiley   +1 more source

Clinical and biochemical manifestation produced by scorpion (Hemiscorpius lepturus) venom in experimental animals

open access: yesJournal of Venomous Animals and Toxins including Tropical Diseases, 2007
Several studies have been published about the clinical and biochemical manifestations produced by the venom of scorpions of the Buthidae family, but very few reports have indicated the manifestations induced by the venom of the Scorpionidae family ...
Zare Mirakabbadi A.   +3 more
doaj   +1 more source

On the fauna of false scorpions (Arachnida: Pseudoscorpiones) of south-eastern Belarus

open access: yesТрансформация экосистем, 2020
Seven species of the false scorpions have been found in the south-eastern Belarus during targeted studies in 2017–2019. Sylvatic forms represent a significant part of species diversity of the regional fauna of the false scorpions.
Artiom M. Ostrovsky
doaj   +1 more source

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