Muntjac seasonal rut, and mating can take place at any time of year; this behaviour is retained by populations introduced to temperate countries. Males have short antlers, which can regrow, but they tend to fight for territory with their "tusks" (downward-pointing canine teeth). The presence of these "tusks" is otherwise unknown in native British wild deer and can be discriminatory when trying to differentiate a muntjac from an immature native deer, although water deer also have visible tusks; however, they are much less widespread. Muntjac are of great interest in evolutionary studies because of their dramatic chromosome variations and the recent
Creature type (Dungeons & Dragons) immunities. A monstrous humanoid is similar to a humanoid (see above), but usually has monstrous or animalistic features. Examples include harpies and minotaurs. All monstrous humanoids have darkvision out to 60 feet; many have supernatural abilities as well. An ooze is an amorphous or mutable creature without a single solid form. Oozes are usually mindless and homogeneous, and reproduce by simply splitting into two. The most famous ooze is the gelatinous cube. Many oozes dwell underground, and most secrete an acid from their skin that dissolves flesh and other materials rapidly. Oozes are essentially blind, but an ability called "blindsight",