Crows are among the most frequent mobbers, [...]. Gulls often resort to the practice, too, with anunusual twist: vomiting on the predator with keen aim. Colonies offieldfares fire from another orifice, ejecting feces on a predator insuch volume and with such accuracy that the threatening creature isliterally grounded or stopped in its tracks. If enough of thesedroppings-bombs hit their target, they can soak a bird’s wings so itcan’t fly.
丢粪攻击太可怕了吧
No wonder birds have evolved numerous strategies for raising alarm. [...] Sometimes the warning isn’t a sound at all but the silence between sounds. When noisy, social birds like red-winged blackbirds suddenly get quiet, it’s a strong signal there’s danger nearby.
最怕空气突然安静
For centuries, it was thought that male songbirds alone used song as they used fancy plumage and elaborate tails, to attract females and compete with rival males. The female role was to listen and choose and, in so doing, exert influence through sexual selection, driving the evolution of elaborate singing by preferring males with ever more melodious and complex songs. This was considered a classic example of the power of sexual selection to generate extreme sex differences in brain and behavior. Instances of female song were largely dismissed as atypical—rare exceptions or the outcome of hormonal abnormalities.
All that changed when the international team of researchers led by Karan Odom surveyed the occurrence of female song in 1,141 species from all over the world. The team suspected that male-only song was not the whole story by any stretch. Most songbird species live in tropical regions, which have been less studied. And female song is more common in Australia and surrounding areas, where songbirds originated. There, it’s a much more egalitarian setup. Sure enough, the results of the study, published in 2014, showed that female song occurs in more than two-thirds of surveyed songbird species and families—and that it’s structurally similar to male songs (long and complex) and used for similar purposes. In the songs of male and female superb starlings of eastern Africa, for instance, there’s no difference in the structure or the number of motifs that each sex sings. Both sexes in this highly social species sing all year long and may do so to signal identity and establish rank within their groups. The study made it clear: Birdsong is not just a male thing. And elaborate song did not evolve just through sexual selection—females choosing males for their vocal prowess—but through the broader process of social selection: both sexes competing for food, nest sites, territories, and mates.
https://www.youtube.com/watch?v=Bf9GVLuFo1Y
whipbird 叫起来好有意思啊,真的像甩鞭子
MEPHISTOPHELES:
[…]
Es scheint, die Frau ist nicht zu Hause?
DIE TIERE:
Beim Schmause,
Aus dem Haus
Zum Schornstein hinaus!
MEPHISTOPHELES:
Wie lange pflegt sie wohl zu schwärmen?
DIE TIERE:
So lange wir uns die Pfoten wärmen.
Pfoten wärmen 可爱死了!
今天学到的词:
Katzenwäsche:猫洗指的是用水很少的、不仔细的清洁。
Er beugte sich vor und streckte ihr langsam Zunge entgegen. Er ließ sie auf- und abflappen wie einen gefangenen Schmetterling
Sie kann sich so viel Zeit mit dem Abschied lassen wie die Bäume, die sich dem Jahr entziehen, jeder mit seiner eigenen Geschwindigkeit. Den Ahorn hat die Kälte schon erfasst, während in den Linden noch der Sommer steckt.
我折腾毛象的时候复习了好多 regex,不然真是看不懂,什么 /(?:^|[^\/\)\w])#/
/\\vec\s*{[^\}]+}/
什么的
https://m.cmx.im/@pattypoem/107225794710592652