I'm not saying that it's completely normal, but that does not mean that it is not uncommon. I don't think that the reason your gerbil's tail fell off was because of the jagged area, but because your sister pulled him by the tail. You should NEVER do this. If you do, the tail will either deglove or just break off.
Fish Spawning. Female fish lay eggs, with the eggs being fertilized by the males in close attendance. Eggs develop more rapidly (in a few weeks) in warmer temperatures, and more slowly in colder water (up to months).Most freshwater fish spawn in the spring, although salmon, char, and some trout spawn in the fall.ish Spawning. Female fish lay eggs, with the eggs being fertilized by the males in close attendance. Eggs develop more rapidly (in a few weeks) in warmer temperatures, and more slowly in colder water (up to months).
Therefore, for the catfish, geography is destiny. Because water in southern latitudes warms first, catfish-spawning season begins in the south first. Most species spawn in the late spring or early summer. Obviously, it takes longer for a lake to heat up than it does for a shallow backwater to do so. Spawn in a Jar. You can't fish for catfish in a jar, but spawning jars have been around since the 1950s. They make life easier for fisheries, because the hatching jars require less space than hatching troughs do.