for swimming and have valves over their nostrils which close underwater. as they breathe air using a large lung not gills, they are usually found in shallow water where they swim about the bottom. the lung, which can extends almost the entire length ofthe body, can also help with buoyancy to store...
of whale harvesting in the first half ofthe th century. by the late s more than whales were killed annually. [ ] in , the international whaling commission (iwc) banned commercial whaling because ofthe extreme depletion of most ofthe whale stocks. [ ] contemporary whaling is subject to intense debate...
ofthe week (february - , ) down to earth brings you the top environmental cases heard in the supreme court, the high ... february , share environment daily court digest: major environment orders (february , ) down to earth brings you the top environmental cases heard in the supreme court, the high...
call civilization / / the trauma of civilization for our species: war and its victims / / torture is an "american" value: reality versus the rhetoric / / / & bush are distractions from a people's revolt from below / / air force "ranger" training provokes personal moral issues / / ptsd: reality versus...
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school. that aside, she made significant contributions to the field of botany, authored over scientific publications, and was conferred with an honorary doctorate in science from the university of illinois. she specialized in the study of grasses and conducted extensive field work in north- as well...
aquarium. it should be emphasised in this context that the identification of apple snails is difficult. the difficulty to determine thespecies lies herein that many apple snail species are very similar in appearance. a basic identification guide for apple snails is available in thespecies section....
are unclear but it is classified with other mascarene parrots in the tribe psittaculini and may have been related to the broad-billed parrot of mauritius. the rodrigues parrot was green, and had a proportionally large head and beak along with a long tail. it was the largest parrot on rodrigues, and...
every year and sadly many die. if your dog survives the bite it can cost thousands of dollars at the vets for antivenom treatment. data is hard to come by but murdoch vet hospital, in their catchment area only, treated between and dogs for snakebite a year from - . snake avoidance training for your...
combination of molecular marker analysis, fate mapping, time-lapse analysis and genetics in zebrafish and chick to resolve the issue ofthe embryonic origin of pineal progenitors. we find that the pineal organ is specified during neurulation and that a large part of it originates outside ofthe neural...