Red fox (Vulpes vulpes) standing in a grassy meadow deep in the forest in early spring in Canada,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥
EN/USD WelcomeSign in / Register 0Cart US $9.79 Tax excluded, add at checkout if applicable. 2024 Early Spring New Children's Pants Children's Washed Blue Straight Leg Jeans Versatile Long Pants Fashionable and TrendyColor: Beige Kid Size: 3T 2T 3T 4T 5T 6T 7TCustomer...
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Jim didn’t want to write a stupid essay about his summer vacation. So he gave up on the assignment and wrote what he wanted to. Not an essay at all but a short story. Science fiction. It was about a distant planet that didn’t have summer—it was spring all the time. And it di...
The agricultural transition profoundly changed human societies. We sequenced and analysed the first genome (1.39x) of an early Neolithic woman from Ganj Dareh, in the Zagros Mountains of Iran, a site with early evidence for an economy based on goat herdi
The lactating mammary gland responds to changes in milking frequency by modulating milk production. This response is locally regulated and, in dairy cows, the udder is particularly sensitive during early lactation. Relative to cows milked twice-daily thr
Spring, summer, and fall chinook salmon (Oncorhynchus tshawytscha) are native to the Snake River, the largest tributary of the Columbia River. Historically... Matthews, G. M,Waples, R. S 被引量: 126发表: 1991年 Persistent organic pollutants in outmigrant juvenile chinook salmon from the Lower...
In North America, spring peepers are among the first frogs to breed in spring, and their breeding season is prolonged. In southern Ontario, Canada, male spring peepers typically call from early April until early June, with peak breeding in May. Sampling design We examined geographic variation ...
Cordova Falls Conservation Area Algonquin Highlands Havelock Ontario Canada in early spring Canadian forest with trails and cascades,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿
Over a 4-year period, four cultivars of wheat, two of barley, and two of oats were sown shortly before the soil was continuously frozen in the fall (average date October 28) and soon after land could be prepared in the spring (average date May 8). Fall-sown wheat emerged in the spri...