Are there any animals with an odd number of feet? Humans have two feet, dogs have four and spiders have eight. By feet, I mean external appendages. I realize starfish have five arms, but it turns out these arms are not actually used for locomotion.

snails and slugs come closest although the 'foot' is an integral part of their body, not an appendage

Here's a bit more information for you:

If one defines 'leg' as a bodily appendage, usually articulated, and used for locomotion, the short answer is 'no.' However, some would argue that gastropod molluscs (snails and slugs) have one 'leg' (actually called a 'foot') and/or that starfish have five (and sometimes a larger odd number) of limbs (usually referred to as 'arms'). However, these are not legs in the true sense, as (1) a gastropod's 'foot' is an integral part of their body, not an appendage per se, and (2) a starfish's 'arms' are not directly used for locomotion; rather they move about by the action of the numerous 'tube feet' that protrude from the ventral surface of the arms.
Hope this helps,

Sra

Yes, there are animals with an odd number of feet. One example is the millipede. Despite its name, millipedes don't actually have 1,000 legs, but they can have anywhere from around 30 to over 400 legs, depending on the species. Some species of millipedes have an odd number of legs because their body segments are paired, with each segment having two legs. This means they can have an odd total number of legs if they have an odd number of body segments.

There are also certain types of insects that can have an odd number of legs during their developmental stages. For example, some dragonfly larvae have six legs during their nymph stage.

To find out if there are any animals with an odd number of feet, one way is to do some research. You can start by looking up different species of animals and their characteristics. Online sources such as scientific articles, animal encyclopedias, or wildlife databases can provide information on the number of legs or feet an animal possesses.

Another method is to visit museums, zoos, or nature centers where you can see various animals up close. You can observe and count the number of legs or feet on different species to determine if any have an odd number.

Remember to consider that for some animals, certain limbs or appendages, like legs, may have evolved for purposes other than locomotion, such as for feeding or manipulation.