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Mosaic Brain Evolution Drives Learning in Tropical Butterfly
Researchers have discovered that Heliconius butterflies, known for feeding on both nectar and pollen, show mosaic brain evolution with specialized neural expansions linked to enhanced learning and memory abilities. This expansion occurs in specific brain structures called mushroom bodies, which are key for long-term visual memory and spatial learning.
By analyzing these butterflies’ brain circuits, scientists found that certain cells, known as Kenyoncells, grew at different rates, helping the butterflies navigate complex feeding routes. As part of this behaviour, they demonstrate a remarkable ability to learn and remember spatial information about their food sources—skills previously connected to the expansion of a brain structure called the mushroom bodies, responsible for learning. These findings highlight how brain structure adaptations support cognitive innovations, offering new insights into neural evolution.
Mosaic Brain Evolution Drives Learning in Tropical Butterfly
Researchers have discovered that Heliconius butterflies, known for feeding on both nectar and pollen, show mosaic brain evolution with specialized neural expansions linked to enhanced learning and memory abilities. This expansion occurs in specific brain structures called mushroom bodies, which are key for long-term visual memory and spatial learning.
By analyzing these butterflies’ brain circuits, scientists found that certain cells, known as Kenyoncells, grew at different rates, helping the butterflies navigate complex feeding routes. As part of this behaviour, they demonstrate a remarkable ability to learn and remember spatial information about their food sources—skills previously connected to the expansion of a brain structure called the mushroom bodies, responsible for learning. These findings highlight how brain structure adaptations support cognitive innovations, offering new insights into neural evolution.
Telegram has made it easier for its users to communicate, as it has introduced a feature that allows more than 200,000 users in a group chat. However, if the users in a group chat move past 200,000, it changes into "Broadcast Group", but the feature comes with a restriction. Groups with close to 200k members can be converted to a Broadcast Group that allows unlimited members. Only admins can post in Broadcast Groups, but everyone can read along and participate in group Voice Chats," Telegram added.
Telegram hopes to raise $1bn with a convertible bond private placement
The super secure UAE-based Telegram messenger service, developed by Russian-born software icon Pavel Durov, is looking to raise $1bn through a bond placement to a limited number of investors from Russia, Europe, Asia and the Middle East, the Kommersant daily reported citing unnamed sources on February 18, 2021.The issue reportedly comprises exchange bonds that could be converted into equity in the messaging service that is currently 100% owned by Durov and his brother Nikolai.Kommersant reports that the price of the conversion would be at a 10% discount to a potential IPO should it happen within five years.The minimum bond placement is said to be set at $50mn, but could be lowered to $10mn. Five-year bonds could carry an annual coupon of 7-8%.
