movstube.net

Search Topics

Enter your search term

(Searching a total of 402 Topics)

Topics about "primate" include:

  1. Loss of olfactory capacity in primates and cetaceans
    It is widely thought that reduced olfactory capacity in apes is linked to the development of acute vision, especially trichromacy.

Topics containing the search term "primate" are:

  1. Loss of olfactory capacity in primates and cetaceans
    It is widely thought that reduced olfactory capacity in apes is linked to the development of acute vision, especially trichromacy.

  2. Foregut fermentation in mammals
    Foregut fermentation is best known from the ruminants, such as cattle, deer and giraffes, that regurgitate and rechew their food to aid microbial digestion. However, they are not the only mammals to have evolved this digestive strategy...

  3. Monochromacy in mammals
    Underwater environments are dominated by blue light. Ironically, whales and seals cannot see blue, because they have independently lost their short-wavelength opsins.

  4. Bats: Insights into convergence
    Bats show a fascinating array of convergences, from echolocation to flight to nectar feeding. Vampire bats can even detect infrared radiation, while others might be able to see into the ultraviolet end of the spectrum.

  5. Gliding lizards, frogs and ants
    Tree-dwelling (‘arboreal’) ants capable of controlled gliding do so when dislodged or threatened by predation. Gliding species include members of three disparate families: Myrmicinae, Pseudomyrmecinae and Formicinae.

  6. Gliding mammals
    Gliding mammals rely primarily on extensive skin membranes or ‘patagia’ that stretch between fore- and hind-limbs, creating a wing-like structure.

  7. Gliding reptiles
    In the reptiles, different forms of skin membrane (called ‘patagia’) and in some extinct species, primitive feathers, have evolved convergently as adaptations for gliding.

  8. Mammal-like placentation in skinks (and fish)
    “Only two types of vertebrates [have] evolved a reproductive pattern in which the chorioallantoic placenta provides the nutrients for fetal development. One is [...] the eutherian mammals […], and the other, a few lineages of the family Scincidae.” A.F. Flemming (2003) J Exp Zool 299A 33-47

  9. Trichromatic vision in mammals
    Who has not enjoyed the splash of colour in a market: gorgeous red peppers, the green of basil and what on earth are these purple vegetables over there? All thanks to trichromatic vision, another story of convergence.

  10. Venom in mammals (and other synapsids)
    Beware the venomous shrew! Yes, venomous. And convergent on some formidable lizards...

  11. Wire plants, moas and elephant birds
    Madagascar and New Zealand were once home to giant herbivorous birds. And the plants have not forgotten...    

  12. Scanning eyes in molluscs and arthropods
    Some sea snails have a linear retina. What a hopeless arrangement, to see the world through just a narrow slit! Not quite, because they have come up with a rather intriguing trick to extend their visual field - and it's a trick too good to use only once.

  13. Lysozyme
    Lysozymes are common antibacterial enzymes that protect our eyes and nose from infection, but some animals have recruited them for a rather different purpose...

  14. Intelligence and cognition in birds
    House sparrows are known to gain access to shopping malls by flying in front of sensors that operate sliding doors, whilst herons have been shown to be adept fishers using baits and lures.

  15. Baculum (penile bone) in mammals
    Ouch!! Gentlemen, fancy a bone in your penis? Seems a bit risky, given it could fracture during copulation. Even our near ancestors had such a bone. It has probably evolved several times, but what is its function?

  16. Tool use in birds
    What animals can drop stones into a water-filled tube to bring floating food within reach or bend wire to form a hook? Obviously chimpanzees? No, New Caledonian crows have evolved sophisticated tool use too.

  17. Dolphin communication, cognition and sociality
    Dolphins are one of the most intriguing sources of evolutionary convergence, having cognitive abilities that seem to find many parallels in the great apes, and rather remarkably even extend to tool use.

  18. Ants: insights into convergence
    Trap-jaws, silk and agriculture – just a few examples of convergence in the arguably most successful group of insects, the ants…

  19. Electroreception in fish, amphibians and monotremes
    From an evolutionary point of view, electroreception is particularly intriguing as a sense modality that has been repeatedly lost and reinvented again.

  20. Octopus arm function
    If you want to see a truly remarkable example of convergence, then present an octopus with a piece of food and have a high-speed camera ready…