What's the definition of 'natural prey' and 'natural predator'?
2022年4月3日 · The only natural predator of leopard seals is the killer whale. The Wikipedia article on Leopard says. The leopard is primarily threatened by habitat fragmentation and conversion of forest to agriculturally used land, which lead to a declining natural prey base, human–wildlife conflict with livestock herders and high leopard mortality rates.
ichthyology - Are there predators evolved to eat puffer fish?
2013年2月24日 · It seems that susceptibility to tetrodotoxin varies a lot from one animal to another, and so some natural variation might allow a reasonable amount of predation to occur. I also wonder whether the variation in the amount of toxin in …
What are the predators of Glaucus atlanticus? - zoology
I'm researching the Glaucus atlanticus, also known as the blue glaucus, among various other names, but after reading quite a few articles and searching on the Internet as many different ways as I can think of, I can't find any of its predators, or any indication it has no natural predators. Everything I've read is just silent on the issue.
evolution - Predators on the Galapagos - Biology Stack Exchange
2017年7月19日 · There actually are some terrestrial predators on the Galapagos Islands. Notably, there are four species of birds of prey on the islands: the endemic Galapagos hawk (Buteo galapagoensis), and three other birds with a wider distribution, the osprey (Pandion haliaetus), the short-eared owl (Asio flammeus), and the barn owl (Tyto alba).
What is the definition of "Natural Selection"?
2019年3月13日 · Differentiating natural selection and artificial selection is probably the vaguest part and has a tremendous amount of gray area. There is no Real difference between artificial and natural selection, it is all just down to human conceptual framing. Natural selection is just a response to an environment, but what makes up that environment covers ...
evolution - Why are mules/donkeys aggressive when faced with …
$\begingroup$ Different organisms evolve different behaviors, evolution is a whatever works kind of designer. it can influenced by all kinds of things, social behavior, what kinds of predators there are, offspring care needs, herd size, and a hundred other things. $\endgroup$ –
How do Addax defend itself from predators? - zoology
2024年1月3日 · The addax (Addax nasomaculatus) is a critically endangered antelope adapted to live in extreme desert conditions.
Are there any arboreal mammals which eat leeches?
2020年8月10日 · According to The New World Encyclopaedia the predators of leeches are fish, crayfish, turtles, birds, frogs, dragonflies, and damselflies. It states that many of their predators have also been their prey. Ecospark also adds snails and other insects to the list. Biokids also points out that leeches will eat other leeches.
What prevents predator overpopulation? - Biology Stack Exchange
It seems like the natural tendency would be for (for example) the sharks to continue breeding and eating until all the fish are gone, or the wolves to eat all the deer, etc. Obviously some predators have predators of their own, but that's just putting off the question: if the hyenas don't overpopulate because the lions eat them, then what's ...
population dynamics - Why aren't native predators in Australia …
2021年5月13日 · Snakes can fit in places most other predators can't due to their size. Additionally large invertebrates (like huntsman spiders) should also be able to take on some of the mouse load. And it would be one thing if this was the first time the population ever boomed like this, but mice population booms have apparently have happened since Australia ...