This review reports the current status of artificial breeding technology in the Crocodylia and the future requirements for the establishment of AI in the saltwater crocodile. Although there are challenges regarding safe restraint and immobilisation, semen collection of the saltwater crocodile by manual stimulation has proven effective in yielding sufficient volume and sperm concentrations for empirical and molecular analyses of sperm preservation and physiology. Nevertheless, there is still much to learn with respect to fundamental anatomy, physiology and behaviour in both sexes, but particularly in the female. Although lessons can be learned from successful AI in the alligator, the details of this research are not readily accessible. Future research needs to focus on the proximate factors of seasonality and the underlying control of the female's annual reproductive cycle; this will require novel and innovative ways to collect blood samples without causing stress or injury, and ideally a dedicated crocodile research breeding colony. Because the saltwater crocodile is a farmed species, there is likely to be sufficient impetus for the application of assisted breeding technology to drive future productivity in the industry. These developments will also have benefits for the genetic and reproductive management of endangered captive populations.
I propose this simple fan theory to explain the episode: most surveillance technology has been outlawed, resulting in new, creative ways to convict people. Like turning memories into the breadcrumbs used for criminal investigations.
The team behind the research was led by Professor Kilwon Cho, Dr. Giwon Lee, and Dr. Jonghyun Son from the Department of Chemical Engineering at POSTECH, along with a team led by Professor Seung Goo Lee from the Department of Chemistry at the University of Ulsan. They drew inspiration from the unique sensory organ of crocodile skin and developed pressure sensors with microdomes and wrinkled surfaces. The result was an omnidirectionally stretchable pressure sensor.
Crocodiles, formidable predators that spend most of their time submerged underwater, possess a remarkable ability to sense small waves and detect the direction of their prey. This ability is made possible by an incredibly sophisticated and sensitive sensory organ located on their skin. The organ is composed of hemispheric sensory bumps that are arranged in a repeated pattern with wrinkled hinges between them. When the crocodile moves its body, the hinges deform while the sensory part remains unaffected by mechanical deformations, enabling the crocodile to maintain an exceptional level of sensitivity to external stimuli while swimming or hunting underwater.
The research team has successfully mimicked the structure and function of the crocodile's sensory organ to develop a highly stretchable pressure sensor. By inventing a hemispheric elastomeric polymer with delicate wrinkles containing either long or short nanowires, they have created a device that outperforms currently available pressure sensors. While other sensors lose sensitivity when subjected to mechanical deformations, this new sensor maintains its sensitivity even when stretched in one or two different directions.
The research team has developed a stretchable pressure sensor suitable for a wide range of wearable devices with diverse applications. To evaluate its performance, the researchers mounted the sensor onto a plastic crocodile and submerged it in water. Interestingly, the mounted sensor was able to detect small water waves, successfully replicating the sensing capabilities of a crocodile's sensory organ.
Inspired by the uniquely sensitive skin of a crocodile, Cho and his team recently described the development of a stretchable pressure sensor that could be used in wearable devices for applications such as prosthetics, soft robotics, and human-machine interfaces.
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The UTS team developed SharkSpotter, a drone-based AI shark detection system now used at around 50 Australian beaches. The technology was named national machine learning innovation of the year in 2018.
The safety need is considerable as saltwater crocodiles encroach increasingly into populated areas. The reptiles are extremely dangerous because, unlike most sharks, they deliberately target humans as prey.
The Crocodile activity wall panel is designed to look like a friendly crocodile that will attract interest and admiration wherever he is seen. Made in five pieces, each with a different set of manipulative activities to encourage hand-eye coordination and fine motor skills including: percussive instruments, a mirror, magnetic pen and ball followers, various mazes and threading activities, rotational pieces and a slotted line followers and interlocking cogs. It offers a range of hands-on problem solving learning opportunities for the development of fine motor skills whilst engaging users in conversations about what they are doing. Supplied fully assembled in five pieces, each with fixing holes and attachment screws for easy fitting to a wall.
The Crocodile activity wall panel includes five different wall panels to create a colorful crocodile full of wonderful, hands-on activities to keep little ones engaged. The panels are filled with 11 activities to help children develop their coordination, problem-solving and language skills. Explore sound, color and movement in a fun-filled way. Suitable for children 18 months and up, this brightly colored, wall-mounted activity center helps youngsters build motor skills, hand-eye coordination, descriptive language, and shape, space and reasoning skills. Perfect for homes, preschools and waiting rooms, this 6-foot Activity Wall Busy Board provides enough activities and space to keep small groups of children occupied at once. Play with beads, make music, explore colors and more. Lightweight for ease of use, each of the five panels includes fixing holes and attachment screws for easy mounting onto any wall. This is a great way to spruce up the wall without taking up floor space.
The total volume is 45000 m of fresh water. The park will have worlds largest crocodile and fish aquarium, where visitors will have excellent underwater views of a depth, similar to that of a natural lake. Actually it will be the first time that visitors will have the chance to observe how crocodiles rest underwater and swim in their natural aquatic environment. The Mirdiff Crocodile Park park offers the unique experience to observe and take part in the complete life cycle of a crocodile, from egg hatching to crocodile feeding. A premium and high quality animal park for family education and entertainment.
Gharials are some of the rarest crocodylians on Earth and members of a group of animals that once roamed the planet with the dinosaurs. Native to India, gharials resemble American alligators and crocodiles, but with bulging eyes and an extremely long and thin snout that allows them to cut through water when hunting prey. In males, this snout houses an even longer nose that ends in an enlarged bulb.
Crocodile grain leather watch bands are great for replicating the crocodile skin style. Leather watch bands are embossed with crocodile patterns to create an authentic looking skin. Shop our selection of crocodile grain leather replacement watch bands below.
At noon, on a hot March day, in the flat semi-arid plains of Kachchh, a lone figure stood on a slight rise, fiddling with the controller of a drone that hovered a few feet off the ground. Soon, the whine of the drone faded as it lifted up into the sky and headed towards the sandy banks of a nearby pond, scanning the ground for mugger crocodiles (Crocodylus palustris).
The study focused on three locations within Gujarat, which are radically different from each other. Desai explains that Vadodara is a highly polluted river ecosystem where crocodiles always have access to water bodies, but human-crocodile conflict is high.
Kachchh, on the other hand, is a semi-arid desert with highly seasonal water availability and barely any human-crocodile interaction. Anecdotal data indicates that crocodiles in Kachchh may migrate to other places during dry spells.
To answer such questions on mugger physiology and behaviour, one needs detailed data obtained from close observations of several focal individuals over extended periods of time. Such tracking systems help in gaining a general understanding of how crocodiles live, grow, reproduce and behave in each of these distinctive settings.
Banner image: (From left) Drone shots of mugger crocodiles in Kachchh, Anand and Vadodara. The red boxes focus on the scute (bony plates) patterns used for identifying individual crocodiles. Photo by Brinky Desai.
These miniature crocodile clips are perfect to use with conductive thread where you want to be able to make a connection to a board, but be able to easily remove the PCB. Our BBC micro:bit Emoji Bag tutorial is an excellent example of this.
A research team from Ruhr-Universität Bochum (RUB) used functional MRI to assess the brain patterns of a Nile crocodile and determine what happens when the animal hears complex sounds. Image courtesy of Felix Ströckens, M.D./Proceedings of the Royal Society B: Biological Sciences
Crocodiles count among the most ancient species of vertebrates and have barely changed over the space of more than 200 million years. Accordingly, they constitute a link between dinosaurs and bird species today. "Analyses of crocodile brains thus provide deep insights into the evolution of the nervous system in mammals and may help us understand at which point certain brain structures and behaviours associated therewith were formed," explained Felix Ströckens, who led the research team.
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