Probably the toughest thing about discovering a new species is being familiar with the ones that are known well enough to tell if a new example belongs to a new species. So, I would say yes, it is difficult, just because it takes a long time to learn about whatever species you are studying, and get to know it well enough.
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The first expedition to Borneo was confident that it would discover new species of plants.
You should talk to an animal conservation and tell them about the new species and then decide if you should protect the new species or not.
The Beehler's team did discover about 20 species of the frog.
It is important to discover new species because the new discoveries help us understand previously known species even better. The behaviors and characteristics of a new species can explain habitual mysteries in an existing species.
An extremely lucky scientist.
Manifest Destiny helped farmers find new land to farm on, people new places to live, and scientists new species to discover and study.
Very good because they are in high demand to study and discover new species
There are at least 3,500 different species of mosquito.
They explored the Louisia Purchase Found a quick water route to the Pacific Discover new species of plants and animals
It's difficult to be sure of the exact number as new species are still being discovered, but there are about 3000 species of snakes in the world.
To discover different species