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A small Emergency Survival kit put in an easy to reach place known to all family members can prove invaluable in a major emergency. Sea otter moms invest so much energy in raising their pups that they risk their own survival, a new study suggests. The marine mammals spend about 930 megajoules—a measure of energy—to bring up baby, which is the equivalent of burning through 133 percent of their body mass.
The new study, published June 11 in the Journal of Experimental Biology, revealed that females with six-month-old pups need to consume nearly twice as much food as females with no pups in order to satisfy the family’s daily energy needs. For the study, Thometz and her colleagues measured the energetic demands of sea otter pups at the Monterey Bay Aquarium in California. Those data, in combination with information on the behavior of wild sea otters, were then used to estimate the total energetic burden placed on sea otter mothers. Daniel Ardia, a biologist at Franklin and Marshall College in Lancaster, Pennsylvania, agreed, noting that this study reveals “a remarkable level of maternal investment.
Other females are forgoing the full demands of motherhood, abandoning their pups shortly after birth or weaning them at an earlier age. In lean times, giving up on their pups lets females prioritize their own survival, perhaps leaving the door open for future breeding attempts. National Geographic VoicesResearchers, conservationists, and others share stories, insights and ideas about our living planet's rapidly changing geography.
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Follow the links on the sidebar of any of the blog's pages for details and tips on how to apply for a Fellowship. Featured Research: Mushara Elephant ProjectCaitlin O'Connell and her husband, Tim Rodwell, started the Mushara Elephant Project in Namibia 24 years ago to better understand elephant social structure, communication and health in order to apply this knowledge to improved care in captivity and ultimately to elephant conservation in the wild. Two years after being discovered deep in a South African cave, the 1,500 fossils excavated during the Rising Star Expedition have been identified as belonging to a previously unknown early human relative that National Geographic Explorer-in-Residence Lee Berger and team have named Homo naledi. With at least 15 individuals of all ages and both sexes represented, the find adds an unprecedented amount of information to our understanding of early human evolution in Africa. In addition, the absence of any other animal remains or large debris in the fossil chamber strongly suggests that these non-human beings intentionally deposited their dead within this cave.


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The loquat is difficult to root from greenwood cuttings so most plants are produced from seed. The Asian tiger mosquito is associated with the transmission of viruses such as dengue, yellow fever, Eastern equine encephalitis, and West Nile virus (CDC 2005; Eritja et al. The Asian tiger mosquito is so-named because of noticeable black and white stripes on its body. Female Aedes albopictus lay their eggs above the surface of standing water in treeholes and water-holding containers; the eggs must be in water to hatch. The animals, found along coastal areas in the North Pacific, consume a quarter of their body mass in food each day, in part because their small bodies do not hold heat very well and they lack the insulating layer of blubber that is found in many other marine mammals. In an effort to accomplish this, some mothers spend up to 14 hours per day foraging for food.
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Posters and commenters are required to observe National Geographic's community rules and other terms of service. Fulbright awardees to build awareness of transnational challenges, comparing and contrasting cross-border issues. O’Connell is on the faculty at Stanford University School of Medicine and CEO of the elephant-focused nonprofit, Utopia Scientific.
However, it has a relatively high pectin content and can be a valuable addition to jam, jelly or chutney.
It is found in all five counties of the Lower Galveston Bay watershed (Brazoria, Chambers, Galveston, Harris and Liberty). Aedes albopictus is a treehole mosquito in natural habitats, however in urban areas, the mosquitoes can be found in dense vegetation. Explore the list alongside to dive deeper into some of the most popular categories of the National Geographic Society's conversation platform Voices. A grantee of the National Geographic Society, she is also an award-winning author of six books about elephants. Read Caitlin's dispatches from Mushara.


Some find the taste slightly acidic, but the acidity is diminished if the fruit is eaten when completely ripe. Larvae can survive in small containers that hold rainwater such as flower pots, bird baths, and tires.
Biting rates of this species have been recorded at the level of 30 to 48 bites per hour (Cancrini et al. Meet the Fellows and follow their adventures across the world on the Fulbright-National Geographic Storytelling blog. Like all mosquitoes, this species is a small, delicate insect with a narrow body, one pair of narrow wings and three pairs of long, slender legs. It has an elongated proboscis (a long, flexible snout) which the female uses to bite its victim and extract a blood meal (ISSG 2009a). The adult is the free-flying insect that feeds on vertebrate animals (female mosquitoes only) and the nectar of plants.
The virus-mosquito-bird transmission pathway has been documented as negatively impacting the populations of North American bird species, including the American crow, blue jay, American robin, chickadee, and Eastern bluebird (LaDeau et al.
The eggs from populations colonizing temperate regions resist lower temperatures than those from tropical areas.
Moya€?), 80, was enlisted by the Mercer Arboretum near Houston to breed vegetation that would thrive in Houstona€™s extreme climate. The fruit itself has a soft, fuzzy exterior comparable to an apricot in size and color, but not in shape. The loquat is teardrop or pear shaped and generally is not larger than 1 inch long a€“ the a€?Moy Grandea€™ loquat is two to three times that large.



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