Flehmen behaviour in an excited Bison Bull

            The flehmen behaviour, inhaling air and curling of the upper lip, facilitates the transfer of pheromones and other scents into the vomeronasal organ located above the roof of the mouth via a duct which exits just behind the front teeth of the animal. This activates the vomeronasal organ and enables oestrus detection.
Here the bull is testing the air to determine if his selected cow is ready for him. 
In the Rut, male bison (bulls) find a female who is close to Estrus and stay by her side (tend her) until she is ready to mate.  The bull will protect her from other bulls if he can until she is ready to mate.  He will bellow to discourage other males, and also try to hide her from other bulls by standing between the cow and another bull. After mating, he will then leave her to find another cow. (Bison bison)
Image - Copyright 2015 Alan Vernon

   

Taken on: November 3, 2015

Tags:

American

bison

bovine

Flehmen

behaviour

curling

upper

lip

inhaling

pheromones

scents

vomeronasal

organ

fur

coat

rut

smelling

male

female

bull

cow

bullock

mammal

plains

grasslands

reproduction

valley

Wyoming

Yellowstone « less

Sets appears in: • Land Mammals

Groups appears in: • yellowstone • U.S. National Parks more » • Nature and Landscapes • NATURE ♥ unlimited ♥ (Public Group Forever) • photomorrobay • Photosick - 攝影發燒友 • Animals/Birds of Planet Earth • Earth Images Nature Photography • high quality nature • NATURE RULES!!! • Mammals of North America « less

Stats: 580 views

close tools panel

Badge creator

Use Flickriver Badge Creator to create a badge linking to your photos, your group or any other Flickriver view.

You can place your badge on your Flickr profile, Blog or Website.

Add to your iGoogle or Netvibes page

Flickriver widget for iGoogle or Netvibes can display almost any Flickriver view - most interesting today, by user, by group, by tag etc. Once added to your personalized homepage, just edit widget settings to select your desired view.

Clickr on one of the buttons below to install:

Embed on your Web site

To embed this view, Copy and Paste the following HTML code:

Black background (preview):

White background (preview):

Firefox and Chrome addons

Adds a 'Flickriver' button to your browser. While viewing any Flickr photos page, click on this button to open the same view on Flickriver.

Install in Firefox
Install in Chrome

Search plugin

Add 'Search on Flickriver' to your browser's search box. Works with Firefox and Internet Explorer. Install search plugin

"View on Flickriver" Greasemonkey script

A Greasemonkey script that adds Flickriver links to various Flickr photo pages - user photos, favorites, pools etc, allowing to quickly open the corresponding Flickriver view.

Also, allows quickly viewing any Flickr photo on black background in large size.

Install "View on Flickriver" script

Bookmarklet

While viewing any Flickr photos page, click on the bookmarklet to open the same view on Flickriver.

To install: drag and drop the following link to your Bookmarks toolbar.
IE users - add the link to your Favorites under the Links folder