K2-148b
K2-148b is a confirmed Super-Earth, probably rocky, closely orbiting a small orange dwarf star. It is the innermost of three Super-Earths around the star K2-148, which is in a wide binary pair with the M0.5V red dwarf EPIC 220194953. K2-148b is the smallest planet of the system, at about a third larger than Earth, and could be terrestrial in nature. However, the three planets do not exhibit significant transit timing variations, implying that they could have relatively low masses. The planet was validated in early 2018 by Hirano "et al." and is too hot for known life.
Monte Iberia eleuth
The Monte Iberia eleuth (Eleutherodactylus iberia) is a small eleutherodactylid frog endemic to eastern Cuba. It is the smallest living frog in the Northern Hemisphere, about in snout–vent length. It is the third-smallest frog (and tetrapod) in the world, following "Paedophryne amauensis" and the Brazilian gold frog. It was first discovered in 1993 on Mount Iberia (Holguín Province), from which it gets its name, and exists in only two small regions of Cuba. Much remains unknown about this small creature.