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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1816 1
1828 1
1830 1
1831 1
1836 2
1842 7
1843 3
1844 1
1845 6
1846 1
1847 1
1848 2
1849 2
1850 1
1852 4
1853 1
1854 1
1855 2
1859 3
1862 1
1864 2
1866 2
1867 2
1868 2
1869 3
1870 2
1871 1
1873 1
1874 1
1875 2
1877 1
1878 1
1879 1
1880 5
1881 5
1882 1
1883 8
1884 7
1885 6
1886 22
1887 22
1888 7
1889 18
1890 5
1891 4
1892 18
1893 36
1894 11
1895 3
1896 10
1897 2
1898 3
1899 12
1900 4
1901 4
1902 9
1903 2
1904 6
1905 5
1906 2
1907 4
1908 6
1909 1
1910 6
1911 3
1912 10
1913 4
1914 4
1915 4
1916 6
1917 4
1918 7
1919 2
1920 4
1921 7
1922 5
1923 5
1924 3
1925 6
1926 4
1927 11
1928 4
1929 10
1930 8
1931 7
1932 10
1933 9
1934 8
1935 3
1936 9
1937 5
1938 5
1939 8
1940 6
1941 9
1942 6
1943 8
1944 7
1945 84
1946 336
1947 371
1948 344
1949 264
1950 425
1951 453
1952 450
1953 458
1954 502
1955 484
1956 557
1957 570
1958 548
1959 553
1960 650
1961 658
1962 709
1963 1103
1964 1420
1965 1714
1966 1661
1967 2109
1968 2529
1969 2967
1970 2959
1971 3106
1972 3523
1973 3517
1974 3408
1975 3676
1976 3317
1977 3091
1978 3125
1979 3178
1980 3419
1981 3321
1982 3529
1983 3542
1984 3685
1985 3596
1986 3533
1987 3612
1988 3386
1989 3478
1990 3468
1991 3664
1992 3679
1993 3698
1994 3595
1995 3603
1996 3767
1997 3678
1998 3909
1999 3896
2000 4138
2001 4173
2002 4291
2003 4728
2004 5089
2005 5510
2006 6410
2007 6498
2008 6924
2009 7212
2010 7680
2011 7940
2012 8411
2013 8730
2014 8879
2015 9042
2016 9245
2017 9396
2018 9456
2019 10308
2020 10837
2021 11019
2022 10736
2023 10038
2024 4467

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297,279 results

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Page 1
Structure and function of the bird fovea.
Bringmann A. Bringmann A. Anat Histol Embryol. 2019 May;48(3):177-200. doi: 10.1111/ahe.12432. Epub 2019 Feb 7. Anat Histol Embryol. 2019. PMID: 30734347 Review.
Among various bird groups, the foveal pit may have two depths, shallow (80-120 m) or deep (190-240 m). ...It is suggested that Muller glial cells contribute to various optical functions of the bird fovea....
Among various bird groups, the foveal pit may have two depths, shallow (80-120 m) or deep (190-240 m). ...It is suggested that Muller …
Bird flocks.
Portugal SJ. Portugal SJ. Curr Biol. 2020 Mar 9;30(5):R206-R210. doi: 10.1016/j.cub.2020.01.013. Curr Biol. 2020. PMID: 32155419 Free article.
Steven Portugal introduces the behavioral and aerodynamic underpinnings of aerial flocking in birds....
Steven Portugal introduces the behavioral and aerodynamic underpinnings of aerial flocking in birds....
Genetics and Evolution of Bird Migration.
Gu Z, Dixon A, Zhan X. Gu Z, et al. Annu Rev Anim Biosci. 2024 Feb 15;12:21-43. doi: 10.1146/annurev-animal-021122-092239. Epub 2023 Oct 31. Annu Rev Anim Biosci. 2024. PMID: 37906839 Free article. Review.
Bird migration has long been a subject of fascination for humankind and is a behavior that is both intricate and multifaceted. ...Integration of research from the fields of genomics, ecology, and evolution can enhance our comprehension of the complex mechanisms involved in …
Bird migration has long been a subject of fascination for humankind and is a behavior that is both intricate and multifaceted. ...Int …
The bird's immune response to avian pathogenic Escherichia coli.
Alber A, Stevens MP, Vervelde L. Alber A, et al. Avian Pathol. 2021 Oct;50(5):382-391. doi: 10.1080/03079457.2021.1873246. Epub 2021 Feb 12. Avian Pathol. 2021. PMID: 33410704 Review.
Avian pathogenic Escherichia coli (APEC) cause colibacillosis in birds, a syndrome of severe respiratory and systemic disease that constitutes a major threat due to early mortality, condemnation of carcasses and reduced productivity. APEC can infect different types of b …
Avian pathogenic Escherichia coli (APEC) cause colibacillosis in birds, a syndrome of severe respiratory and systemic disease that co …
[Bird sex determination].
Gilgenkrantz S. Gilgenkrantz S. Med Sci (Paris). 2004 Nov;20(11):1004-8. doi: 10.1051/medsci/200420111004. Med Sci (Paris). 2004. PMID: 15525496 Free article. Review. French.
Among vertebrates, evolution took two opposite pathways : in mammals, the system of XX:XY sex determination, with Y chromosome, induces male differentiation. In contrast, in birds, the system ZZ:ZW, with the W chromosome, induces female differentiation. ...
Among vertebrates, evolution took two opposite pathways : in mammals, the system of XX:XY sex determination, with Y chromosome, induces male …
Bird-pollinated flowers in an evolutionary and molecular context.
Cronk Q, Ojeda I. Cronk Q, et al. J Exp Bot. 2008;59(4):715-27. doi: 10.1093/jxb/ern009. Epub 2008 Mar 7. J Exp Bot. 2008. PMID: 18326865 Review.
This shift affects many floral features, particularly those responsible for the attraction of birds, deterrence of illegitimate flower visitors (particularly bees), protection from vigorous foraging by birds, and accurate placement of pollen on bird's bodies. …
This shift affects many floral features, particularly those responsible for the attraction of birds, deterrence of illegitimate flowe …
An integrative approach to understanding bird origins.
Xu X, Zhou Z, Dudley R, Mackem S, Chuong CM, Erickson GM, Varricchio DJ. Xu X, et al. Science. 2014 Dec 12;346(6215):1253293. doi: 10.1126/science.1253293. Science. 2014. PMID: 25504729 Review.
Recent studies in developmental biology and other disciplines provide additional insights into how bird characteristics originated and evolved. The iconic features of extant birds for the most part evolved in a gradual and stepwise fashion throughout archosaur evolu …
Recent studies in developmental biology and other disciplines provide additional insights into how bird characteristics originated an …
Candidate bird species for use in aging research.
Austad SN. Austad SN. ILAR J. 2011;52(1):89-96. doi: 10.1093/ilar.52.1.89. ILAR J. 2011. PMID: 21411861 Review.
Birds live about 3 times as long as an average mammal of similar size. ...At least five bird species deserve special attention for development as models of successful aging. ...
Birds live about 3 times as long as an average mammal of similar size. ...At least five bird species deserve special attention …
Bird brood parasitism.
Stevens M. Stevens M. Curr Biol. 2013 Oct 21;23(20):R909-13. doi: 10.1016/j.cub.2013.08.025. Curr Biol. 2013. PMID: 24156805 Free article.
For many animals, the effort to rear their young is considerable. In birds, this often includes building nests, incubating eggs, feeding the chicks, and protecting them from predators. Perhaps for this reason, about 1% of birds (around 100 species) save themselves t …
For many animals, the effort to rear their young is considerable. In birds, this often includes building nests, incubating eggs, feed …
The evolving role of zoological parks and aquariums in migratory bird conservation.
Hutchins M, Marra PP, Diebold E, Kreger MD, Sheppard C, Hallager S, Lynch C. Hutchins M, et al. Zoo Biol. 2018 Sep;37(5):360-368. doi: 10.1002/zoo.21438. Epub 2018 Sep 4. Zoo Biol. 2018. PMID: 30182447 Review.
As threats to migratory birds in the Western Hemisphere, including North America, intensify and bird populations decline, there is a growing interest among zoo biologists in the conservation and management of these taxa. ...Zoos and aquariums could play an important …
As threats to migratory birds in the Western Hemisphere, including North America, intensify and bird populations decline, ther …
297,279 results
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