<s>[INST] Please give me some examples of recently-discovered biological species or higher-order taxa that had a big impact on the scientific community. [/INST] The world’s smallest reptile was discovered in February of 2021. It was named Brookesia nana, or B. nana for short. This so-called nano-chameleon is about the size of a sunflower seed and may be the smallest reptile on Earth.

Finding such a tiny reptile raises interesting questions about the lower limits of body size in vertebrates. It also highlights the astonishing—and highly threatened—biodiversity of Madagascar. Its discoverers suspect the chameleon will soon be listed as critically endangered.</s>\ <s>[INST] Interesting! What are some other tiniest animals? Specifically, the tiniest amphibia, bird, and mammal, respectively? [/INST] The tiniest amphibian is the Paedophryne amauensis, a species of frog found in Papua New Guinea, which can grow up to 7.7mm in length.

The tiniest bird is the bee hummingbird (Mellisuga helenae), which is native to Cuba and Isla de la Juventud in the West Indies. It is the smallest species of bird in the world and can grow up to 6.1 cm in length and weigh 1.95 g.

The tiniest mammal is the bumblebee bat (Craseonycteris thonglongyai), also known as the Kitti's hog-nosed bat, which is native to Thailand and Myanmar. It has a body length of about 3-4 cm and a wingspan of about 15 cm, and is considered the smallest mammal in the world by body size.</s>