The discovery of a half-a-billion-year-old slug with spines has shed light on the origins of animals like oysters and octopuses, researchers have said.
The discovery of a half-a-billion-year-old slug with spines has shed light on the origins of animals like oysters and octopuses, researchers have said.
The discovery of a half-a-billion-year-old slug with spines has shed light on the origins of animals like oysters and octopuses, researchers have said.
High-profile people held prisoner in Russia - including British citizen Vladimir Kara-Murza and US reporter Evan Gershkovich - have been freed as part of a massive prisoner swap.
High-profile people held prisoner in Russia - including British citizen Vladimir Kara-Murza and US reporter Evan Gershkovich - have been freed as part of a massive prisoner swap.
High-profile people held prisoner in Russia - including British citizen Vladimir Kara-Murza and US reporter Evan Gershkovich - have been freed as part of a massive prisoner swap which has…