Why does the writer take the lion-tailed macaque as an example? A. To tell us some animals are killed by human beings. B. To show some animals are facing extinction. C. To tell us the damage(毁坏) of wildlife's living places makes wildlife endangered. D. To tell us human beings ...
Examining the ontogeny of foraging behaviors of the California sea lion ( Zalophus californianus ) using stable isotope analysisOrr, Anthony JNewsome, Seth DVanblaricom, Glenn RDelong, Robert L
A lion, a lamb, and a hyena: Comparative studies of the diets and behaviors of three jumping spider speciesBagheera kiplingi (Araneae: Salticidae) appears to occupy a unique niche as an herbivorous parasite on Mesoamerican ant-acacia mutualisms. I used field observations and stable isotope ...
第一句说的是:本能是动物们不用学就会的行为。第二句:动物们需要通过学习来学的其他的行为。第三句:举个例子，狮子捕猎并不是一种本能。第四句:狮子是通过观察它母亲的狩猎过程来习得捕猎的技能的。
Whatisthesecretofgravity?.Ifit'sconvenient,youcangivehimsometabletennisballsandputoneathisdeskBasket,lethimaim,shoot!24,ewemptyboxes,putalittletoyinoneofthoseboxes,noTochangethelocationofthebox,letthebabyguesswhereisthetoy?25,acushion,pilloworpillowsonthefloor,andthebabycrawledpast,Turnaroundandseewho'...
Once again, a lion of evolutionary psychology, David Buss, hassaid it best: “Human behavior is enormously flexible – a flexibility afforded by the large number of context-dependent evolved psychological adaptations that can be activated, combined, and sequenced to produce variable adaptive human...
When they’re not hunting, orcas can engage in other behaviors that reflect their complex social structures. One of the most mysterious is the“greeting ceremony”seen in the salmon-eating population off the West Coast of the U.S. and Canada. Giles compares it to a...
Such proteins (or at least significant portions of them) adopt a more-or-less random-coil (‘unfolded’) structure in solution in vitro, but this does not rule out that context-specific folding/assembly states can arise inside cells. On the contrary, for many ‘intrinsically disordered’ ...
Sjöberg L, Karlsson B, Atti AR, Skoog I, Fratiglioni L, Wang HX. Prevalence of depression: comparisons of different depression definitions in population-based samples of older adults. J Affect Disord. 2017;221:123–31. Article PubMed Google Scholar Dean J, Keshavan M. The neurobiology...
so a stretchy cat is prepared to attack at any time. In the wild, cats will stretch to ward off predators and stake their claim over their prey. Because cats have the ability to remain immobile for such long periods of time, when they are ready to hunt or attack enemies, all they nee...