It's hard to say without seeing it and knowing which animal it's from, but if it's hard, then it's probably bone. Snakes swallow their prey whole. They do have quite powerful digestive enzymes but there are still parts of their food that they can't digest, so these pass through undigested. If the white stuff is fuzzy, it could be fungus (mold). If the white stuff looks squashy then it is urine or pee (this usually happens to lizards for Example Bearded Dragons, Geckos, Etc.)
Male Crested geckos will start to show signs of maturity around 8-12 months of age. These are signs that the male is now ready to breed as his sexual organs have fully developed. This white mess is a mixture of sperm, urine and is the males way of marking territory. They will usually remove the liquid, although anything left behind, will rub along branches and leaves, leaving his scent behind.
* Leopard geckos * Crested Geckos * White Lined Geckos (Skunk Geckos) * Fat-Tailed Geckos * House Geckos * Tokay Geckos * Golden Geckos * Madagascar Ground Geckos * Day Geckos
Crested geckos come in a variety of colors and patterns, these are referred to as morphs. Spots along the geckos body, limbs and tail would be considered the dalmatian morph/trait. An animal that exhibits 20 or more spots (black, red, green, white) would be considered a "dalmatian crested gecko". An animal that exhibits 50 or more spots would be considered a "super dalmatian crested gecko".
White-crested Hornbill was created in 1848.
White-crested Elaenia was created in 1837.
Semen.
white stuff comes out
White-crested Tiger Heron was created in 1899.
white stuff
It is banana milkshake
Sperm.
The seeds. Nothing to worry about :)
Yes