Turtles are characterized by their shell, composed of a dorsal carapace and a ventral plastron. The carapace first appears as the turtle-specific carapacial ridge (CR) on the lateral aspect of the embryonic flank. Accompanying the acquisition of the shell, unlike in other amniotes, hypaxial muscles in turtle embryos appear as thin threads of fibrous tissue. To understand carapacial evolution fr...

Historical global declines of megaherbivores from marine ecosystems have hitherto contributed to an understanding of seagrass meadow production dominated by detrital pathways — a paradigm increasingly being questioned by recent re-evaluations of the importance of herbivory. Recoveries in green turtle populations at some locations provide an ideal opportunity to examine effects of high megaherbi...

OBJECTIVE To describe a coelioscopic-assisted prefemoral oophorectomy technique for use in chelonians. DESIGN Descriptive report. ANIMALS 11 adult female turtles (6 red-eared sliders, 2 box turtles, 1 painted turtle, 1 four-eyed turtle, and 1 Chinese red-necked pond turtle). Five turtles required oophorectomy because of reproductive tract disease; the remaining 6 underwent elective oophorec...

A new type of Authoring System NeGAS for 3DCG animation is developed in which a user can easily manipulate three dimensional objects in 3DCG space on the computer. This system is described using an object oriented three dimensional Logo language called o3logo developed by us. The user can manipulate objects comfortably with the help of the turtle metaphor by using o3logo programming, programmin...

BACKGROUND Dendritic morphology largely determines patterns of synaptic connectivity and electrochemical properties of a neuron. Neurons display a myriad diversity of dendritic geometries which serve as a basis for functional classification. Several types of molecules have recently been identified which regulate dendrite morphology by acting at the levels of transcriptional regulation, direct i...

In Poland, just like in many other countries, selling Red-eared terrapins Trachemys scripta elegans as invasive has been prohibited, but there are other subspecies of Trachemys scripta on the pet market, constituting a threat to the native Pond turtle Emys orbicularis. I provide data on the structure of local trade in turtles in eastern Poland and the factors driving it after the introduction o...

Five sea turtle species, all globally threatened, are found in southern Mozambican waters. Illegal hunting of foraging turtles, nest raiding and modification of coastal habitat are assumed to affect local sea turtle populations, but a lack of capacity and resource constraints hamper monitoring and compliance activities. Enlisting the recreational SCUBA diving community to report sea turtle sigh...

Painted turtles (Chrysemys picta) are commercially harvested in large numbers in Minnesota for sale to biological supply companies and the pet trade. We investigated the possible effects of this harvest by comparing size, demography, and catch rates of painted turtles in 12 harvested and 10 nonharvested painted turtle populations in 2001 and 2002. We correlated turtle catch rates to harvest sta...

color has the ability to inspire, excite, soothe, heal and even agitate. this is particularly true for children, who can be extra sensitive to color's impact. so the importance of picking out just the right color for a young child's room shouldn't be underestimated. when choosing colors to use for your rooms home it's important to think about the mood you want to create and ...

Sea turtles interact with a variety of fishing gears across their broad geographic distributions and ontogenetic habitat shifts. Cumulative assessments of multi-gear bycatch impacts on sea turtle populations are critical for coherent fisheries bycatch management, but such estimates are difficult to achieve, due to low fisheries observer effort, and a single-species, single-fishery management fo...