C. Change colour. D. Produce poison.31. What does the experiment with the small dishes indicate? C A. Frogs tap when flies are eatable. B. Frog tapping links to food presence. C. Frogs tap when prey seems catchable. D. Frogs could recognize different flies. 相关知识点: 试题来源: ...
That might not sound like much of a defence. After all, in theory the frog has still had a chunk bitten out of it, which won't do it any good. But in practice predator attacks hardly ever go that far, thanks to the frogs' other weapon: colour. A marbled poison frog (Epipedobates...
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Within the northern lineage, the presence of gradual intermediate morphs and the population structure support the presence of gene flow across the colour transition area while the red versus intermediate鈥揼reen divergence in both calls and morphology reveals the potential for assortative mating. Our ...
vt. 毒死;污染;放毒于;对…有不良影响 adj. 有毒的; 变形 复数:poisons过去式:poisoned过去分词:poisoned现在分词:poisoning第三人称单数:poisons 双语释义 n.(名词) [C][U]毒药,毒物substance that can cause illness or death [U]酒alcoholic drink ...
Master TL (1999) Predation by Rufous Motmot on Black-and-Green Poison Dart Frog. Wilson Bull 111:439–440 Google Scholar McLean CA, Stuart-Fox D (2014) Geographic variation in animal colour polymorphisms and its role in speciation. Biol Rev 89:860–873 PubMed Google Scholar Medina I, ...
Carotenoid supplementation of the tadpole diet did have a significant on the colour of the froglets (increased red pigment) and this tended to be greater initially but diminished over time. These results indicate that frog colouration can be influenced by diet under normal husbandry routines. ...
The second adaptation is its bright yellow colour. This sends a message to the predators that says “I am toxic! Do no eat me!”It is beneficial to the frogs to warn the predators because even if the predators are killed by the poison, the dart frog will be dead as well, meaning tha...
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This shows that the loss of conspicuous colour likely co-evolved repeatedly with a decrease in body size. Thus, selection on body size may influence evolutionary shifts between aposematism and crypsis and vice versa.doi:10.1007/s10682-013-9649-8Andreas Rudh...