All camelids have an unusual immune system. In all mammals, the Y-shaped antibody molecules consist of two heavy chains along the length of the Y, and two light chains at each tip of the Y.
Tips for printing coloring book page or coloring sheet:
Step 1: Click on "Print" link of your choice, if you want a
Camel foot image for coloring yourself then you need to click on "Print
Camel foot Coloring page (B/W)" link. If you want colored (already filled with colors)
Camel foot graphic to print then click "Print
Camel foot Coloring page (Color)".
Step 2: Now a new pop-up window will open along the
Camel foot image of your choice (if new window does not open-up then you may need to check your pop-up blocker settings.). Now click on "PRINT". This will open printer dialog, select your print and print.