These frogs look as though they are in a perpetual state of disappointment.
We've just found the grumpy cat version of a frog as these guys aren't having any of your measly jokes! Say hello to the Black Rain Frog, which looks as though they are in a perpetual state of disappointment or even sadness. Don't worry, they aren't really, as that's just how they look in the wild. If you were to journey to the southern slopes of the Cape Fold Belt in South Africa where the species is exclusively found, be sure to keep an eye out as these little jumpers are one of a kind.
They grow in elevations of over 3,300 feet (1000 m) and they are a burrowing species. The Black Rain Frog likes to inhabit fynbos and forest fringes and they can survive amazingly well even without open water. Anytime these droopy looking frogs ever feel disturbed or threatened, they would puff up and enlarge its body, and go into a more aggressive stance and exhibit some warning signs out.
When these frogs are in their element however, they are a bunch of cuddlers and make no mistake about it. During mating season, the females tend to secrete a sticky substance on their backs that will allow the male to stick on and not fall off. This unique trait is called adhesive amplexus and you can see how passionate they are... they simply refuse to let go! These frogs adapt to the change of seasons and spend most of the year underground. They hibernate in communal burrows during the winter and form mucous cocoons around their bodies to get through the dry seasons.
Their breeding periods tend to begin around late November and usually last for approximately 4-6 weeks onto early January. This is when you can get a really good show of their adorable squeaks. Their croaks sound just like a squeaky toy and it's so cute to listen to! Also, they lay their eggs in small clutches underground which develops directly into froglets without passing through a free-living tadpole stage.
The Black Rain Frog also has a cousin which is remarkably similar to it, except that it inhabits a different region. The Desert Rain frog lives in the small coastal strips of land between the African countries of Namibia and South Africa. They usually spend most of the day buried in sand dunes with their flanges on their back feet acting as tiny digging machines. There is much sea fog to be found in this part of the world, and that helps keep the sand moist in an otherwise arid terrain.
These frogs have a patch on their bellies that is transparent with plenty of blood vessels and capillaries on the other side. This helps them absorb water directly from the sand! The desert rain frogs differ remarkably from their higher-altitude cousins in one major aspect - their croaks. Unlike their mountainous comrades, these frogs have a unique call while defending their turn, and its really ferocious, even for their size.