Newborns and mothers initially showed very different isotopic profiles that decreased as infants grew older. We compared the stable carbon and nitrogen isotope values of mothers and their offspring and attributed major isotopic differences to the maternal milk ingested by infants. We dehydrated the fecal samples on site using a solar “poop” dehydrator and stored them on silica, in a freezer, until we took them to the University of Calgary’s Isotope Science Laboratory for analyses. We collected several hundred fecal samples from mothers, juvenile siblings, and infants varying in age from birth to seven years old, as some individuals continued to make nipple contacts up to this age. We assessed observational limitations by using a novel fecal stable isotope approach to physiologically determine the timing of age-related feeding transitions and to measure the relative contributions of maternal milk to adult foods in the diets of wild chimpanzee infants at Ngogo, Kibale National Park, Uganda. A major challenge in quantifying infant diets and in identifying the timing of feeding transitions comes from our inability to know from observations alone whether infants are actually drinking maternal milk when they make nipple contacts, and to distinguish between mouthing and ingesting of vegetation. In wild primates, it is difficult to precisely measure what infants are eating. Understanding the diets and feeding patterns of nonhuman primate infants will help us establish early life history parameters in our hominin ancestors, which can shed light on the diversity of contemporary infant feeding practiced between and within human populations. To better understand the evolutionary contexts under which our diverse strategies of infant feeding evolved, we can look to nonhuman primates. For example, the optimal ages at which infants ought to be completely weaned or begin consuming solid foods are regularly questioned by researchers and in the media. Individual Glass Coaster.Humans vary considerably in our strategies of infant feeding. Elegant polished safety glass and heat resistant. Streamlined, one sided modern and attractive table top print Tempered Glass Mounts are ideal for wall display, plus the smaller sizes can also be used free-standing via an integral stand Photo postcards are a great way to stay in touch with family and friends. Made with durable metal and luxurious printing techniques, metal prints bring images to life and add a modern touch to any space Our tote bags are made from soft durable fabric and include a strap for easy carrying Works with all computer miceįSC Real Wood Frame and Double Mounted with White Conservation Mountboard - Professionally Made and Ready to Hang The next best thing to owning the original artwork, with a soft textured natural surface, our fine art reproduction prints meet the standard of the most critical museum curatorsīevelled Wood Effect Framed and Mounted Prints - Professionally Made and Ready to HangĪccessorise your space with decorative, soft cushionsĪrchive quality photographic print in a durable wipe clean mouse mat with non slip backing. Photo prints supplied in custom cut card mount ready for framing Professionally Stretched Canvas over a hidden Wooden Box Frame and Ready to Hang Sentimental and practical, personalised photo mugs make perfect gifts for loved ones, friends or work colleaguesĬanvas Prints add colour, depth and texture to any space. Poster prints are produced on Vibrant Poster Paper resulting in timeless and breath-taking posters which are also ideal for framingĮnjoy your favourite drink from a mug decorated with an image you love. Greetings Cards suitable for Birthdays, Weddings, Anniversaries, Graduations, Thank You and much moreĬontemporary Framed and Mounted Prints - Professionally Made and Ready to Hang Jigsaw Puzzles are an ideal gift for any occasion Photo prints are produced on Vibrant Archival Photo Paper resulting in timeless and breath-taking prints which are also ideal for framing Our standard Photo Prints (ideal for framing) are sent same or next working day, with most other items shipped a few days later.
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