A new study suggests that pulsar timing arrays could help reveal how the Universe’s first supermassive black holes formed. A faint background of extremely low-frequency gravitational waves, detected by monitoring networks of pulsars, may preserve clues from events that began more than 13 billion years ago. Among them could be the processes that produced some […]
Scientists Reveal How Cells Tame One of Biology’s Most Dangerous Metals
Polyamines may protect cells from toxic iron buildup by keeping reactive iron under control. Iron keeps cells alive, but when too much of it remains chemically reactive, the same metal can become destructive. Excess free iron can drive reactions that damage DNA, proteins, and cell membranes, creating a problem cells must constantly control. Whitehead Institute […]
Scientists Reveal How Cells Tame One of Biology’s Most Dangerous Metals
Polyamines may protect cells from toxic iron buildup by keeping reactive iron under control. Iron keeps cells alive, but when too much of it remains chemically reactive, the same metal can become destructive. Excess free iron can drive reactions that damage DNA, proteins, and cell membranes, creating a problem cells must constantly control. Whitehead Institute […]
Scientists Reveal How Cells Tame One of Biology’s Most Dangerous Metals
Polyamines may protect cells from toxic iron buildup by keeping reactive iron under control. Iron keeps cells alive, but when too much of it remains chemically reactive, the same metal can become destructive. Excess free iron can drive reactions that damage DNA, proteins, and cell membranes, creating a problem cells must constantly control. Whitehead Institute […]
Scientists Reveal How Cells Tame One of Biology’s Most Dangerous Metals
Polyamines may protect cells from toxic iron buildup by keeping reactive iron under control. Iron keeps cells alive, but when too much of it remains chemically reactive, the same metal can become destructive. Excess free iron can drive reactions that damage DNA, proteins, and cell membranes, creating a problem cells must constantly control. Whitehead Institute […]
Scientists Reveal How Cells Tame One of Biology’s Most Dangerous Metals
Polyamines may protect cells from toxic iron buildup by keeping reactive iron under control. Iron keeps cells alive, but when too much of it remains chemically reactive, the same metal can become destructive. Excess free iron can drive reactions that damage DNA, proteins, and cell membranes, creating a problem cells must constantly control. Whitehead Institute […]
Scientists Reveal How Cells Tame One of Biology’s Most Dangerous Metals
Polyamines may protect cells from toxic iron buildup by keeping reactive iron under control. Iron keeps cells alive, but when too much of it remains chemically reactive, the same metal can become destructive. Excess free iron can drive reactions that damage DNA, proteins, and cell membranes, creating a problem cells must constantly control. Whitehead Institute […]
Scientists Reveal How Cells Tame One of Biology’s Most Dangerous Metals
Polyamines may protect cells from toxic iron buildup by keeping reactive iron under control. Iron keeps cells alive, but when too much of it remains chemically reactive, the same metal can become destructive. Excess free iron can drive reactions that damage DNA, proteins, and cell membranes, creating a problem cells must constantly control. Whitehead Institute […]
Scientists Reveal How Cells Tame One of Biology’s Most Dangerous Metals
Polyamines may protect cells from toxic iron buildup by keeping reactive iron under control. Iron keeps cells alive, but when too much of it remains chemically reactive, the same metal can become destructive. Excess free iron can drive reactions that damage DNA, proteins, and cell membranes, creating a problem cells must constantly control. Whitehead Institute […]
Blackbirds Somehow Know When a Snake Is Too Dangerous To Attack
Red-winged blackbirds largely avoided striking rattlesnakes while aggressively attacking gopher snakes, revealing a striking difference in nest defense behavior. At nests across western Oregon, red-winged blackbirds readily confronted many threats to their young, but rattlesnakes prompted a strikingly different response. Even though the birds likely had little or no experience with vipers, they were remarkably […]