David B. Miller
Animal Behavior Screencasts
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David B. Miller
Animal Behavior ScreencastsEpisodes
David B. Miller
Animal Behavior Screencasts
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Episodes of Animal Behavior Screencasts
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Early experience greatly affects behavioral development. Here we look at different ways of experimentally addressing how that takes place.THIS IS THE FINAL EPISODE OF THE ANIMAL BEHAVIOR SCREENCASTS SERIES. ALL EPISODES WILL REMAIN AVAILABLE
Konrad Lorenz’s original imprinting question concerned species recognition in relation to mate selection. This reformulation drills down to individual recognition as a possible mechanism underlying incest avoidance in relation to a model of op
Imprinting is a powerful phenomenon, but the manner in which it is studied experimentally is sometimes questionable, ranging from the tasks that animals are required to do to demonstrate preferences to the issue of redirecting species-typical p
The concept of critical periods is often associated with imprinting as well as other phenomena ranging from experimental embryology to language development. The experimental study of critical periods, however, usually ignores a critical method
An examination of sexual and filial imprinting (social attachments) from an historical perspective.
Important events occur before birth or hatching, both in terms of embryonic movements and the influences of incoming sensory information. The extent of significant contributions to postnatal development can depend on how "altriciality" or "pre
The ways that experience, both prenatal and postnatal, can affect behavioral development can often times be obvious (linear) or not so obvious (nonlinear). There are also 5 different ways in which either form of experience can greatly affect d
Developmental systems and a consideration of evidence inconsistent with genetic determinism, such as the C-value paradox and contextual & experiential activation of genetic activity. Also, epigenetics, and flawed views of so-called interaction
To paraphrase animal behaviorists T. C. Schneirla and Niko Tinbergen, an understanding of animal behavior necessitates an understanding of how behavior actually develops, beginning prenatally. Here, we look at a few issues concerning developme
A look at the controversy surrounding the ape language controversy, including the apes Vicki, Washoe, Sarah, Lana, Sherman & Austin, Nim, Kanzi, and Panbanisha.
Some nonhuman organisms use senses that are undeveloped in humans. As discussed here, these include electrical communication, magnetic sensitivity, surface wave communication, and dome pressure sensitivity.
Many species communicate via touch (tactile communication), including allogrooming, allopreening, etc. Here, we look at some examples, including swarming onset by locusts and tandem running in ants.
Many animals communicate via odor molecules. Here we look at comparative aspects of olfaction, including underwater odor communication as well as olfactory receptors in the antennae of cockroaches.
Some bird species have excellent abilities to imitate other species of birds as well as other sounds. This brief episode shows a few examples.
Some animal vocalizations are relatively simple in acoustic structure, but many are also very complex and can be energetically costly to produce. So, why produce them? Here we examine some data on frog and bird vocalizations that offer possib
In an attempt to ascertain how some species of song birds learn their songs, researchers have developed techniques to disrupt auditory input as well as output and assess the results on adult song.
An examination of the complexity of bird song, the syrinx—a structure that is primarily responsible for it, and how song develops from nestlings to adults.
How nonhuman animals use sounds within the human hearing range to refer to specific items, such as threats from potential predators as well as food items.
Many nonhuman species send and receive auditory signals outside the range of human hearing. Low-frequency infrasound and high-frequency ultrasounds play numerous roles, as discussed here.
Infrared & ultraviolet senses are used extensively by a wide variety of nonhuman organisms, even though these senses are outside the range of visible light to which humans are sensitive. Some examples shown here involve California Ground Squir
Bioluminescence is a form of visual communication involving pulses of light produced by specific organs in a variety of species, such as deep-sea fishes, jellyfishes, and fireflies.
Various aspects of how animals communicate visually, including the waggle dance of honey bees, how honeyguides help Boran people locate honey, asymmetrical tail-wagging of dogs that reflect different emotional states, and mockingbird recognitio
Locating the source of an animal vocalizing ranges from relatively easy to quite difficult, and it all depends on structure of the signal. Easy-to-localize sounds are used for specific purposes, and difficult-to-localize sounds are used for ot
How nonhuman organisms deal with environmental noise to enable effective communication. Noise includes signal attenuation and signal degradation, and has effects on stimulus detection and stimulus recognition.
The definition of communication is complex and somewhat controversial. We'll explore why that's the case, and then move on to some neuronal mechanisms enabling effective communication.
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