The temporary horny cap on the duckling's upper bill which serves for pipping (breaking through) the shell. The egg tooth falls off after the duckling hatches.
This is a whitish, horny tubercle near the tip of the upper mandible of a bird embryo. It is used to break the eggshell during hatching, and is cast off shortly after the chick emerges.
A hard pointed knob on the top of the beak of an unhatched peregrine (or other bird) used to break out of the shell.
A deciduous small and sharp protuberance on the front of the mouth that is used to cut through the egg shell by a hatchling reptile.
a tough, horny piece of epidermis that a baby alligator uses to peck out of its shell
A small, hard protuberance on the tip of the bill that develops in the embryos of all birds, and helps them break out (i.e. hatch) from the eggshell. Newly-hatched Purple Martins have a white, calcareous egg tooth on the upper tip of their beaks that falls off a few days after hatching.
a small, sharp tip on the upper bill used during hatching to chip out of the shell I held a newly hatched chicken and felt its egg tooth.
a hard spike on the tip of the jaw of a baby alligator endotherm- a warm-blooded animal; an animal that has a internally regulated body temperature
A horny spot on the chicks upper beak that assists when he pips through the shell
A horny cap on a chick's upper beak that helps the chick pip through the shell.
is a special hook on the end of a baby bird's bill that helps it break through the egg to hatch.
An egg tooth is a small protuberance on the beak or nose of vertebrates that are hatched from eggs, i.e., birds and reptiles. Some lizards and snakes develop a true tooth that is shed after use; birds and other reptiles generally develop an analogous epidermal horn that is reabsorbed or falls off. Both varieties of egg tooth assist in the breaking or tearing of the eggshell, a process known as pipping.