Discovery Current Affairs - 2019
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Researchers from India have discovered 5 new long-haired species of wasps from different parts of the country.
They were discovered by researchers from National Bureau of Agricultural Insect Resources.
- These species have been named ‘adikeshavus‘ which in Sanskrit means ‘first one to have long hairs’.
- The tribe of these new five wasp species have been characterized by its exclusive preference for spider eggs i.e. parasitising on these relatively medium-sized eggs.
- They have tiny wings which allow them to slip through the silk strands of the egg sacs. These sacs which are deposited in leaf litter by the spiders.
- These 5 wasp species have a uniform length of 1 to 2mm and cluster into groups.
- Their discovery would help researchers to yield large number of species of parasitoids attacking spider eggs in India.
Scientists have discovered a new ancestral species in the human family tree dubbed as Homonaledi in South Africa.
The new discovered species were named after the location where it was found i.e. naledi which means star in Sesotho, a local South African language.
The species has been classified in the genus Homo to which modern humans belong.
Discovery: It was made inside the Rising Star Cave in the Cradle of Humankind World Heritage Site in South Africa by team of scientists led by Lee Berger, professor at University of the Witwatersrand.
They have discovered a huge haul of fossilised bones of these species which is the largest fossil hominin found on the African continent.
Characteristic of Homonaledi species
- These species are among the first of our kind (genus Homo) and could have lived in Africa up to 3 million years ago.
- They have a tiny brain, a primitive pelvis and shoulders.
- They have more progressive human like body shape of its skull and have relatively small modern-looking teeth, primitive fingers, modern-looking feet and characteristic long legs.